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yacy_search_server/source/de/anomic/tools/loaderThreads.java

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// loaderThreads.java
// ---------------------------
// (C) by Michael Peter Christen; mc@anomic.de
// first published on http://www.anomic.de
// Frankfurt, Germany, 2004
// last major change: 28.09.2004
//
// This program is free software; you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation; either version 2 of the License, or
// (at your option) any later version.
//
// This program is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU General Public License for more details.
//
// You should have received a copy of the GNU General Public License
// along with this program; if not, write to the Free Software
// Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
//
// Using this software in any meaning (reading, learning, copying, compiling,
// running) means that you agree that the Author(s) is (are) not responsible
// for cost, loss of data or any harm that may be caused directly or indirectly
// by usage of this softare or this documentation. The usage of this software
// is on your own risk. The installation and usage (starting/running) of this
// software may allow other people or application to access your computer and
// any attached devices and is highly dependent on the configuration of the
// software which must be done by the user of the software; the author(s) is
// (are) also not responsible for proper configuration and usage of the
// software, even if provoked by documentation provided together with
// the software.
//
// Any changes to this file according to the GPL as documented in the file
// gpl.txt aside this file in the shipment you received can be done to the
// lines that follows this copyright notice here, but changes must not be
// done inside the copyright notive above. A re-distribution must contain
// the intact and unchanged copyright notice.
// Contributions and changes to the program code must be marked as such.
package de.anomic.tools;
import java.net.MalformedURLException;
import java.net.URL;
import java.util.ArrayList;
import java.util.Hashtable;
import de.anomic.http.httpc;
public class loaderThreads {
// global values for loader threads
private int timeout;
private String user;
private String password;
private String remoteProxyHost;
private int remoteProxyPort;
// management objects for collection of threads
Hashtable threads;
int completed, failed;
public loaderThreads() {
this(null, 0);
}
public loaderThreads(String remoteProxyHost, int remoteProxyPort) {
this(10000, null, null, remoteProxyHost, remoteProxyPort);
}
public loaderThreads(int timeout, String user, String password,
String remoteProxyHost, int remoteProxyPort) {
this.timeout = timeout;
this.user = user;
this.password = password;
this.remoteProxyHost = remoteProxyHost;
this.remoteProxyPort = remoteProxyPort;
this.threads = new Hashtable();
this.completed = 0;
this.failed = 0;
}
public void newPropLoaderThread(String name, URL url) {
newThread(name, url, new propLoader());
}
public void newThread(String name, URL url, loaderProcess process) {
Thread t = new loaderThread(url, process);
threads.put(name, t);
t.start();
}
public void terminateThread(String name) {
loaderThread t = (loaderThread) threads.get(name);
if (t == null) throw new RuntimeException("no such thread: " + name);
else t.terminate();
}
public int threadCompleted(String name) {
loaderThread t = (loaderThread) threads.get(name);
if (t == null) throw new RuntimeException("no such thread: " + name);
else return t.completed();
}
public int threadStatus(String name) {
loaderThread t = (loaderThread) threads.get(name);
if (t == null) throw new RuntimeException("no such thread: " + name);
else return t.status();
}
public int completed() {
return completed;
}
public int failed() {
return failed;
}
public int count() {
return threads.size();
}
public Exception threadError(String name) {
loaderThread t = (loaderThread) threads.get(name);
if (t == null) throw new RuntimeException("no such thread: " + name);
else return t.error();
}
protected class loaderThread extends Thread {
private URL url;
private Exception error;
private long starttime;
private loaderProcess process;
private ArrayList page;
private boolean loaded;
public loaderThread(URL url, loaderProcess process) {
this.url = url;
this.process = process;
this.error = null;
this.starttime = System.currentTimeMillis();
this.page = null;
this.loaded = false;
}
public void run() {
try {
page = httpc.wget(url, timeout, user, password, remoteProxyHost, remoteProxyPort);
loaded = true;
process.feed(page);
if (process.status() == loaderCore.STATUS_FAILED) {
error = process.error();
}
if ((process.status() == loaderCore.STATUS_COMPLETED) ||
(process.status() == loaderCore.STATUS_FINALIZED)) completed++;
if ((process.status() == loaderCore.STATUS_ABORTED) ||
(process.status() == loaderCore.STATUS_FAILED)) failed++;
} catch (Exception e) {
error = e;
failed++;
}
}
public void terminate() {
process.terminate();
}
public boolean loaded() {
return loaded;
}
public int completed() {
if (process.status() == loaderCore.STATUS_READY) return 1;
if (process.status() == loaderCore.STATUS_RUNNING) return 9 + ((process.completed() * 9) / 10);
if (process.status() == loaderCore.STATUS_COMPLETED) return 100;
return 0;
}
public int status() {
return process.status(); // see constants in loaderCore
}
public Exception error() {
return error;
}
}
public class propLoader extends loaderCore implements loaderProcess {
public propLoader() {
this.status = STATUS_READY;
}
public synchronized void feed(ArrayList v) {
this.status = STATUS_RUNNING;
this.completion = 1;
int line = 0;
String s, key, value;
int p;
try {
while ((this.run) && (line < v.size())) {
// parse line and construct a property
s = (String) v.get(line);
if ((s != null) && ((p = s.indexOf('=')) > 0)) {
key = s.substring(0, p).trim();
value = s.substring(p + 1).trim();
if (key.length() > 0) result.put(key, value);
}
// update thread information
line++;
this.completion = 100 * line / v.size();
}
if (line == v.size()) {
this.status = STATUS_COMPLETED;
return;
} else {
this.status = STATUS_ABORTED;
return;
}
} catch (Exception e) {
this.status = STATUS_FAILED;
this.error = e;
return;
}
}
}
public static void main(String[] args) {
loaderThreads loader = new loaderThreads("192.168.1.122", 3128);
try {
loader.newPropLoaderThread("load1", new URL("http://www.anomic.de/superseed.txt"));
} catch (MalformedURLException e) {
}
}
}