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539 lines
20 KiB
539 lines
20 KiB
// serverSwitch.java
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// -------------------------------------
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// (C) by Michael Peter Christen; mc@yacy.net
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// first published on http://www.anomic.de
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// Frankfurt, Germany, 2004, 2005
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// last major change: 24.03.2005
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//
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// This program is free software; you can redistribute it and/or modify
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// it under the terms of the GNU General Public License as published by
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// the Free Software Foundation; either version 2 of the License, or
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// (at your option) any later version.
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//
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// This program is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU General Public License for more details.
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//
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// You should have received a copy of the GNU General Public License
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// along with this program; if not, write to the Free Software
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// Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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package de.anomic.server;
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import java.io.File;
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import java.io.IOException;
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import java.net.InetAddress;
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import java.util.ArrayList;
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import java.util.Iterator;
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import java.util.List;
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import java.util.Map;
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import java.util.TreeMap;
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import java.util.concurrent.ConcurrentHashMap;
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import net.yacy.cora.protocol.Domains;
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import net.yacy.kelondro.logging.Log;
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import net.yacy.kelondro.util.FileUtils;
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import net.yacy.kelondro.workflow.BusyThread;
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import net.yacy.kelondro.workflow.WorkflowThread;
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import de.anomic.server.serverAccessTracker.Track;
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import de.anomic.server.serverCore.Session;
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public class serverSwitch {
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// configuration management
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private final File configFile;
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private final String configComment;
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private final File rootPath;
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protected boolean firstInit;
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protected Log log;
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protected int serverJobs;
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private Map<String, String> configProps;
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private final Map<String, String> configRemoved;
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private final Map<InetAddress, String> authorization;
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private final TreeMap<String, BusyThread> workerThreads;
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private final TreeMap<String, serverSwitchAction> switchActions;
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private final serverAccessTracker accessTracker;
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public serverSwitch(final File rootPath, final String initPath, final String configPath) {
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// we initialize the switchboard with a property file,
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// but maintain these properties then later in a new 'config' file
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// to reset all changed configs, the config file must
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// be deleted, but not the init file
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// the only attribute that will always be read from the init is the
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// file name of the config file
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this.rootPath = rootPath;
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this.configComment = "This is an automatically generated file, updated by serverAbstractSwitch and initialized by " + initPath;
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final File initFile = new File(rootPath, initPath);
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this.configFile = new File(rootPath, configPath); // propertiesFile(config);
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firstInit = !configFile.exists(); // this is true if the application was started for the first time
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new File(configFile.getParent()).mkdir();
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// predefine init's
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Map<String, String> initProps;
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if (initFile.exists())
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initProps = FileUtils.loadMap(initFile);
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else
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initProps = new ConcurrentHashMap<String, String>();
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// if 'pro'-version is selected, overload standard settings with 'pro'-settings
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Iterator<String> i;
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String prop;
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// delete the 'pro' init settings
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i = initProps.keySet().iterator();
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while (i.hasNext()) {
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prop = i.next();
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if (prop.endsWith("__pro")) {
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i.remove();
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}
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}
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// load config's from last save
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if (configFile.exists())
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configProps = FileUtils.loadMap(configFile);
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else
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configProps = new ConcurrentHashMap<String, String>();
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// remove all values from config that do not appear in init
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configRemoved = new ConcurrentHashMap<String, String>();
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synchronized (configProps) {
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i = configProps.keySet().iterator();
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String key;
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while (i.hasNext()) {
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key = i.next();
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if (!(initProps.containsKey(key))) {
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configRemoved.put(key, this.configProps.get(key));
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i.remove();
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}
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}
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// doing a config settings migration
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//HashMap migratedSettings = migrateSwitchConfigSettings((HashMap) removedProps);
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//if (migratedSettings != null) configProps.putAll(migratedSettings);
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// merge new props from init to config
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// this is necessary for migration, when new properties are attached
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initProps.putAll(configProps);
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configProps = initProps;
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// save result; this may initially create a config file after
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// initialization
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saveConfig();
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}
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// other settings
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authorization = new ConcurrentHashMap<InetAddress, String>();
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// init thread control
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workerThreads = new TreeMap<String, BusyThread>();
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// init switch actions
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switchActions = new TreeMap<String, serverSwitchAction>();
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// init busy state control
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serverJobs = 0;
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// init server tracking
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this.accessTracker = new serverAccessTracker(
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getConfigLong("server.maxTrackingTime", 60 * 60 * 1000),
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(int) getConfigLong("server.maxTrackingCount", 1000),
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(int) getConfigLong("server.maxTrackingHostCount", 100)
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);
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}
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public String myPublicIP() {
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// if a static IP was configured, we have to return it here ...
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final String staticIP = getConfig("staticIP", "");
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if ((!staticIP.equals(""))) {
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return staticIP;
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}
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// otherwise we return the real IP address of this host
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final InetAddress pLIP = Domains.myPublicLocalIP();
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if (pLIP != null) return pLIP.getHostAddress();
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return null;
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}
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// a logger for this switchboard
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public void setLog(final Log log) {
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this.log = log;
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}
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public Log getLog() {
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return log;
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}
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public void setConfig(final Map<String, String> otherConfigs) {
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final Iterator<Map.Entry<String, String>> i = otherConfigs.entrySet().iterator();
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Map.Entry<String, String> entry;
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while (i.hasNext()) {
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entry = i.next();
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setConfig(entry.getKey(), entry.getValue());
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}
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}
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public void setConfig(final String key, final boolean value) {
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setConfig(key, (value) ? "true" : "false");
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}
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public void setConfig(final String key, final long value) {
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setConfig(key, Long.toString(value));
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}
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public void setConfig(final String key, final double value) {
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setConfig(key, Double.toString(value));
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}
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public void setConfig(final String key, final String value) {
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// perform action before setting new value
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final Iterator<serverSwitchAction> bevore = switchActions.values().iterator();
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final Iterator<serverSwitchAction> after = switchActions.values().iterator();
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synchronized (configProps) {
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serverSwitchAction action;
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while (bevore.hasNext()) {
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action = bevore.next();
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try {
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action.doBevoreSetConfig(key, value);
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} catch (final Exception e) {
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log.logSevere("serverAction bevoreSetConfig '" + action.getShortDescription() + "' failed with exception: " + e.getMessage());
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}
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}
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// set the value
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final Object oldValue = configProps.put(key, value);
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saveConfig();
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// perform actions afterwards
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while (after.hasNext()) {
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action = after.next();
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try {
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action.doAfterSetConfig(key, value, (oldValue == null) ? null : (String) oldValue);
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} catch (final Exception e) {
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log.logSevere("serverAction afterSetConfig '" + action.getShortDescription() + "' failed with exception: " + e.getMessage());
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}
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}
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}
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}
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public void removeConfig(final String key) {
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configProps.remove(key);
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}
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/* (non-Javadoc)
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* @see de.anomic.server.serverSwitch#getConfig(java.lang.String, java.lang.String)
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*/
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public String getConfig(final String key, final String dflt) {
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final Iterator<serverSwitchAction> i = switchActions.values().iterator();
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synchronized (configProps) {
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// get the value
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final Object s = configProps.get(key);
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// do action
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serverSwitchAction action;
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while (i.hasNext()) {
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action = i.next();
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try {
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action.doWhenGetConfig(key, (s == null) ? null : (String) s, dflt);
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} catch (final Exception e) {
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log.logSevere("serverAction whenGetConfig '" + action.getShortDescription() + "' failed with exception: " + e.getMessage());
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}
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}
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// return value
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if (s == null) return dflt;
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return (String) s;
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}
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}
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public long getConfigLong(final String key, final long dflt) {
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try {
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return Long.parseLong(getConfig(key, Long.toString(dflt)));
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} catch (final NumberFormatException e) {
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return dflt;
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}
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}
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public double getConfigDouble(final String key, final double dflt) {
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try {
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return Double.parseDouble(getConfig(key, Double.toString(dflt)));
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} catch (final NumberFormatException e) {
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return dflt;
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}
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}
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public boolean getConfigBool(final String key, final boolean dflt) {
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return Boolean.parseBoolean(getConfig(key, Boolean.toString(dflt)));
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}
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/**
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* Create a File instance for a configuration setting specifying a path.
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* @param key config key
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* @param dflt default path value, that is used when there is no value
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* <code>key</code> in the configuration.
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* @return if the value of the setting is an absolute path String, then the
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* returned File is derived from this setting only. Otherwise the path's file
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* is constructed from the applications root path + the relative path setting.
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*/
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public File getConfigPath(final String key, final String dflt) {
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File ret;
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final String path = getConfig(key, dflt).replace('\\', '/');
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final File f = new File(path);
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ret = (f.isAbsolute() ? new File(f.getAbsolutePath()) : new File(this.rootPath, path));
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return ret;
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}
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public Iterator<String> configKeys() {
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return configProps.keySet().iterator();
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}
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private void saveConfig() {
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try {
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synchronized (configProps) {
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FileUtils.saveMap(configFile, configProps, configComment);
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}
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} catch (final IOException e) {
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System.out.println("ERROR: cannot write config file " + configFile.toString() + ": " + e.getMessage());
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}
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}
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public Map<String, String> getRemoved() {
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// returns configuration that had been removed during initialization
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return configRemoved;
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}
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// add/remove action listener
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public void deployAction(final String actionName, final String actionShortDescription, final String actionLongDescription,
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final serverSwitchAction newAction) {
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newAction.setLog(log);
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newAction.setDescription(actionShortDescription, actionLongDescription);
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switchActions.put(actionName, newAction);
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log.logInfo("Deployed Action '" + actionShortDescription + "', (" + switchActions.size() + " actions registered)");
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}
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public void undeployAction(final String actionName) {
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final serverSwitchAction action = switchActions.get(actionName);
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action.close();
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switchActions.remove(actionName);
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log.logInfo("Undeployed Action '" + action.getShortDescription() + "', (" + switchActions.size() + " actions registered)");
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}
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public void deployThread(
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final String threadName,
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final String threadShortDescription,
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final String threadLongDescription,
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final String threadMonitorURL,
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final BusyThread newThread,
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final long startupDelay) {
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deployThread(threadName, threadShortDescription, threadLongDescription, threadMonitorURL,
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newThread, startupDelay,
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Long.parseLong(getConfig(threadName + "_idlesleep" , "100")),
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Long.parseLong(getConfig(threadName + "_busysleep" , "1000")),
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Long.parseLong(getConfig(threadName + "_memprereq" , "1000000")));
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}
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public void deployThread(
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final String threadName,
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final String threadShortDescription,
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final String threadLongDescription,
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final String threadMonitorURL,
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final BusyThread newThread,
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final long startupDelay,
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final long initialIdleSleep,
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final long initialBusySleep,
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final long initialMemoryPreRequisite) {
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if (newThread.isAlive()) throw new RuntimeException("undeployed threads must not live; they are started as part of the deployment");
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newThread.setStartupSleep(startupDelay);
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long x;
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try {
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x = Long.parseLong(getConfig(threadName + "_idlesleep" , "novalue"));
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newThread.setIdleSleep(x);
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} catch (final NumberFormatException e) {
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newThread.setIdleSleep(initialIdleSleep);
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setConfig(threadName + "_idlesleep", initialIdleSleep);
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}
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try {
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x = Long.parseLong(getConfig(threadName + "_busysleep" , "novalue"));
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newThread.setBusySleep(x);
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} catch (final NumberFormatException e) {
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newThread.setBusySleep(initialBusySleep);
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setConfig(threadName + "_busysleep", initialBusySleep);
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}
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try {
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x = Long.parseLong(getConfig(threadName + "_memprereq" , "novalue"));
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newThread.setMemPreReqisite(x);
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} catch (final NumberFormatException e) {
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newThread.setMemPreReqisite(initialMemoryPreRequisite);
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setConfig(threadName + "_memprereq", initialMemoryPreRequisite);
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}
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newThread.setDescription(threadShortDescription, threadLongDescription, threadMonitorURL);
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workerThreads.put(threadName, newThread);
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// start the thread
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if (workerThreads.containsKey(threadName)) newThread.start();
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}
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public BusyThread getThread(final String threadName) {
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return workerThreads.get(threadName);
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}
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public void setThreadPerformance(final String threadName, final long idleMillis, final long busyMillis, final long memprereqBytes) {
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final BusyThread thread = workerThreads.get(threadName);
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if (thread != null) {
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setConfig(threadName + "_idlesleep", thread.setIdleSleep(idleMillis));
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setConfig(threadName + "_busysleep", thread.setBusySleep(busyMillis));
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setConfig(threadName + "_memprereq", memprereqBytes);
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thread.setMemPreReqisite(memprereqBytes);
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}
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}
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public synchronized void terminateThread(final String threadName, final boolean waitFor) {
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if (workerThreads.containsKey(threadName)) {
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((WorkflowThread) workerThreads.get(threadName)).terminate(waitFor);
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workerThreads.remove(threadName);
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}
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}
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public void intermissionAllThreads(final long pause) {
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final Iterator<String> e = workerThreads.keySet().iterator();
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while (e.hasNext()) {
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workerThreads.get(e.next()).intermission(pause);
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}
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}
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public synchronized void terminateAllThreads(final boolean waitFor) {
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Iterator<String> e = workerThreads.keySet().iterator();
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while (e.hasNext()) {
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((WorkflowThread) workerThreads.get(e.next())).terminate(false);
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}
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if (waitFor) {
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e = workerThreads.keySet().iterator();
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while (e.hasNext()) {
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((WorkflowThread) workerThreads.get(e.next())).terminate(true);
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e.remove();
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}
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}
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}
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public String[] sessionsOlderThan(String threadName, long timeout) {
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ArrayList<String> list = new ArrayList<String>();
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final WorkflowThread st = getThread(threadName);
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for (Session s: ((serverCore) st).getJobList()) {
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if (!s.isAlive()) continue;
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if (s.getTime() > timeout) {
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list.add(s.getName());
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}
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}
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return (String[]) list.toArray();
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}
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public void closeSessions(String threadName, String sessionName) {
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if (sessionName == null) return;
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final WorkflowThread st = getThread(threadName);
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for (Session s: ((serverCore) st).getJobList()) {
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if (
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(s.isAlive()) &&
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(s.getName().equals(sessionName))
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) {
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// try to stop session
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s.setStopped(true);
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try { Thread.sleep(100); } catch (final InterruptedException ex) {}
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// try to interrupt session
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s.interrupt();
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try { Thread.sleep(100); } catch (final InterruptedException ex) {}
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// try to close socket
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if (s.isAlive()) {
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s.close();
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}
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// wait for session to finish
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if (s.isAlive()) {
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try { s.join(500); } catch (final InterruptedException ex) {}
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}
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}
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}
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}
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public Iterator<String> /*of serverThread-Names (String)*/ threadNames() {
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return workerThreads.keySet().iterator();
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}
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// authentication routines:
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public void setAuthentify(final InetAddress host, final String user, final String rights) {
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// sets access attributes according to host addresses
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authorization.put(host, user + "@" + rights);
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}
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public void removeAuthentify(final InetAddress host) {
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// remove access attributes according to host addresses
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authorization.remove(host);
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}
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public String getAuthentifyUser(final InetAddress host) {
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// read user name according to host addresses
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final String a = authorization.get(host);
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if (a == null) return null;
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final int p = a.indexOf('@');
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if (p < 0) return null;
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return a.substring(0, p);
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}
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public String getAuthentifyRights(final InetAddress host) {
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// read access rigths according to host addresses
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final String a = authorization.get(host);
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if (a == null) return null;
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final int p = a.indexOf('@');
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if (p < 0) return null;
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return a.substring(p + 1);
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}
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public void addAuthentifyRight(final InetAddress host, final String right) {
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final String rights = getAuthentifyRights(host);
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if (rights == null) {
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// create new authentication
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setAuthentify(host, "unknown", right);
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} else {
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// add more authentication
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final String user = getAuthentifyUser(host);
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setAuthentify(host, user, rights + right);
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}
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}
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public boolean hasAuthentifyRight(final InetAddress host, final String right) {
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final String rights = getAuthentifyRights(host);
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if (rights == null) return false;
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return rights.indexOf(right) >= 0;
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}
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public File getRootPath() {
|
|
return rootPath;
|
|
}
|
|
|
|
public String toString() {
|
|
return configProps.toString();
|
|
}
|
|
|
|
public void handleBusyState(final int jobs) {
|
|
serverJobs = jobs;
|
|
}
|
|
|
|
public void track(String host, String accessPath) {
|
|
this.accessTracker.track(host, accessPath);
|
|
}
|
|
|
|
public List<Track> accessTrack(String host) {
|
|
return this.accessTracker.accessTrack(host);
|
|
}
|
|
|
|
public Iterator<String> accessHosts() {
|
|
return this.accessTracker.accessHosts();
|
|
}
|
|
|
|
}
|