You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
387 lines
14 KiB
387 lines
14 KiB
//serverObjects.java
|
|
//-----------------------
|
|
//(C) by Michael Peter Christen; mc@yacy.net
|
|
//first published on http://www.anomic.de
|
|
//Frankfurt, Germany, 2004
|
|
//(C) changes by Bjoern 'fuchs' Krombholz
|
|
//
|
|
// $LastChangedDate$
|
|
// $LastChangedRevision$
|
|
// $LastChangedBy$
|
|
//
|
|
//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
|
|
|
|
/*
|
|
Why do we need this Class?
|
|
The purpose of this class is to provide a hashtable object to the server
|
|
and implementing interfaces. Values to and from cgi pages are encapsulated in
|
|
this object. The server shall be executable in a Java 1.0 environment,
|
|
so the following other options did not comply:
|
|
|
|
Properties - setProperty would be needed, but only available in 1.2
|
|
HashMap, TreeMap - only in 1.2
|
|
Hashtable - available in 1.0, but 'put' does not accept null values
|
|
|
|
So this class was created as a convenience.
|
|
It will also contain special methods that read data from internet-resources
|
|
in the background, while data can already be read out of the object.
|
|
This shall speed up usage when a slow internet connection is used (dial-up)
|
|
*/
|
|
|
|
package de.anomic.server;
|
|
|
|
import java.io.BufferedOutputStream;
|
|
import java.io.File;
|
|
import java.io.FileOutputStream;
|
|
import java.io.IOException;
|
|
import java.io.UnsupportedEncodingException;
|
|
import java.net.InetAddress;
|
|
import java.util.ArrayList;
|
|
import java.util.HashMap;
|
|
import java.util.List;
|
|
import java.util.Map;
|
|
import java.util.regex.Pattern;
|
|
|
|
import net.yacy.cora.document.MultiProtocolURI;
|
|
import net.yacy.cora.document.UTF8;
|
|
import net.yacy.document.parser.html.CharacterCoding;
|
|
import net.yacy.kelondro.util.Formatter;
|
|
|
|
import de.anomic.search.Switchboard;
|
|
|
|
public class serverObjects extends HashMap<String, String> implements Cloneable {
|
|
|
|
private final static Pattern patternNewline = Pattern.compile("\n");
|
|
private final static Pattern patternDoublequote = Pattern.compile("\"");
|
|
private final static Pattern patternSlash = Pattern.compile("/");
|
|
private final static Pattern patternB = Pattern.compile("\b");
|
|
private final static Pattern patternF = Pattern.compile("\f");
|
|
private final static Pattern patternR = Pattern.compile("\r");
|
|
private final static Pattern patternT = Pattern.compile("\t");
|
|
|
|
private static final long serialVersionUID = 1L;
|
|
private boolean localized = true;
|
|
|
|
private final static char BOM = '\uFEFF'; // ByteOrderMark character that may appear at beginnings of Strings (Browser may append that)
|
|
|
|
public serverObjects() {
|
|
super();
|
|
}
|
|
|
|
public serverObjects(final int initialCapacity) {
|
|
super(initialCapacity);
|
|
}
|
|
|
|
public serverObjects(final Map<String, String> input) {
|
|
super(input);
|
|
}
|
|
|
|
private static final String removeByteOrderMark(final String s) {
|
|
if (s == null || s.length() == 0) return s;
|
|
if (s.charAt(0) == BOM) return s.substring(1);
|
|
return s;
|
|
}
|
|
|
|
/**
|
|
* Add a key-value pair of Objects to the map.
|
|
* @param key This method will do nothing if the key is <code>null</code>.
|
|
* @param value The value that should be mapped to the key.
|
|
* If value is <code>null</code>, then the element at <code>key</code>
|
|
* is removed from the map.
|
|
* @return The value that was added to the map.
|
|
* @see java.util.Hashtable#insert(K, V)
|
|
*/
|
|
@Override
|
|
public String put(final String key, final String value) {
|
|
if (key == null) {
|
|
// this does nothing
|
|
return null;
|
|
} else if (value == null) {
|
|
// assigning the null value creates the same effect like removing the element
|
|
return super.remove(key);
|
|
} else {
|
|
return super.put(key, value);
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Add byte array to the map, value is kept as it is.
|
|
* @param key key name as String.
|
|
* @param value mapped value as a byte array.
|
|
* @return the previous value as String.
|
|
*/
|
|
public String put(final String key, final byte[] value) {
|
|
return this.put(key, UTF8.String(value));
|
|
}
|
|
|
|
/**
|
|
* Add an unformatted String representation of a double/float value
|
|
* to the map.
|
|
* @param key key name as String.
|
|
* @param value value as double/float.
|
|
* @return value as it was added to the map or <code>NaN</code> if an error occured.
|
|
*/
|
|
public double put(final String key, final float value) {
|
|
return (null == this.put(key, Float.toString(value))) ? Float.NaN : value;
|
|
}
|
|
|
|
/**
|
|
* same as {@link #put(String, double)} but for integer types
|
|
* @return Returns 0 for the error case.
|
|
*/
|
|
public long put(final String key, final long value) {
|
|
return (null == this.put(key, Long.toString(value))) ? 0 : value;
|
|
}
|
|
|
|
public String put(final String key, final java.util.Date value) {
|
|
return this.put(key, value.toString());
|
|
}
|
|
|
|
public String put(final String key, final InetAddress value) {
|
|
return this.put(key, value.toString());
|
|
}
|
|
|
|
/**
|
|
* Add a String to the map. The content of the String is escaped to be usable in JSON output.
|
|
* @param key key name as String.
|
|
* @param value a String that will be reencoded for JSON output.
|
|
* @return the modified String that was added to the map.
|
|
*/
|
|
public String putJSON(final String key, String value) {
|
|
// value = value.replaceAll("\\", "\\\\");
|
|
value = patternDoublequote.matcher(value).replaceAll("'");
|
|
value = patternSlash.matcher(value).replaceAll("\\/");
|
|
value = patternB.matcher(value).replaceAll("\\b");
|
|
value = patternF.matcher(value).replaceAll("\\f");
|
|
value = patternNewline.matcher(value).replaceAll("\\r");
|
|
value = patternR.matcher(value).replaceAll("\\r");
|
|
value = patternT.matcher(value).replaceAll("\\t");
|
|
return put(key, value);
|
|
}
|
|
|
|
public String putJSON(final String key, final byte[] value) {
|
|
return putJSON(key, UTF8.String(value));
|
|
}
|
|
|
|
/**
|
|
* Add a String to the map. The content of the String is escaped to be usable in HTML output.
|
|
* @param key key name as String.
|
|
* @param value a String that will be reencoded for HTML output.
|
|
* @return the modified String that was added to the map.
|
|
* @see CharacterCoding#encodeUnicode2html(String, boolean)
|
|
*/
|
|
public String putHTML(final String key, final String value) {
|
|
return put(key, CharacterCoding.unicode2html(value, true));
|
|
}
|
|
|
|
public String putHTML(final String key, final byte[] value) {
|
|
return putHTML(key, UTF8.String(value));
|
|
}
|
|
|
|
/**
|
|
* Like {@link #putHTML(String, String)} but takes an extra argument defining, if the returned
|
|
* String should be used in normal HTML: <code>false</code>.
|
|
* If forXML is <code>true</code>, then only the characters <b>& " < ></b> will be
|
|
* replaced in the returned String.
|
|
*/
|
|
public String putXML(final String key, final String value) {
|
|
return put(key, CharacterCoding.unicode2xml(value, true));
|
|
}
|
|
|
|
/**
|
|
* Add a byte/long/integer to the map. The number will be encoded into a String using
|
|
* a localized format specified by {@link Formatter} and {@link #setLocalized(boolean)}.
|
|
* @param key key name as String.
|
|
* @param value integer type value to be added to the map in its formatted String
|
|
* representation.
|
|
* @return the String value added to the map.
|
|
*/
|
|
public String putNum(final String key, final long value) {
|
|
return this.put(key, Formatter.number(value, this.localized));
|
|
}
|
|
|
|
/**
|
|
* Variant for double/float types.
|
|
* @see #putNum(String, long)
|
|
*/
|
|
public String putNum(final String key, final double value) {
|
|
return this.put(key, Formatter.number(value, this.localized));
|
|
}
|
|
|
|
/**
|
|
* Variant for string encoded numbers.
|
|
* @see #putNum(String, long)
|
|
*/
|
|
public String putNum(final String key, final String value) {
|
|
return this.put(key, value == null ? "" : Formatter.number(value));
|
|
}
|
|
|
|
|
|
public String putWiki(String hostport, final String key, final String wikiCode){
|
|
return this.put(key, Switchboard.wikiParser.transform(hostport, wikiCode));
|
|
}
|
|
|
|
public String putWiki(String hostport, final String key, final byte[] wikiCode) {
|
|
try {
|
|
return this.put(key, Switchboard.wikiParser.transform(hostport, wikiCode));
|
|
} catch (final UnsupportedEncodingException e) {
|
|
return this.put(key, "Internal error pasting wiki-code: " + e.getMessage());
|
|
}
|
|
}
|
|
|
|
// inc variant: for counters
|
|
public long inc(final String key) {
|
|
String c = super.get(key);
|
|
if (c == null) c = "0";
|
|
final long l = Long.parseLong(c) + 1;
|
|
super.put(key, Long.toString(l));
|
|
return l;
|
|
}
|
|
|
|
// new get with default objects
|
|
public Object get(final String key, final Object dflt) {
|
|
final Object result = super.get(key);
|
|
return (result == null) ? dflt : result;
|
|
}
|
|
|
|
// string variant
|
|
public String get(final String key, final String dflt) {
|
|
final String result = removeByteOrderMark(super.get(key));
|
|
return (result == null) ? dflt : result;
|
|
}
|
|
|
|
public int getInt(final String key, final int dflt) {
|
|
final String s = removeByteOrderMark(super.get(key));
|
|
if (s == null) return dflt;
|
|
try {
|
|
return Integer.parseInt(s);
|
|
} catch (final NumberFormatException e) {
|
|
return dflt;
|
|
}
|
|
}
|
|
|
|
public long getLong(final String key, final long dflt) {
|
|
final String s = removeByteOrderMark(super.get(key));
|
|
if (s == null) return dflt;
|
|
try {
|
|
return Long.parseLong(s);
|
|
} catch (final NumberFormatException e) {
|
|
return dflt;
|
|
}
|
|
}
|
|
|
|
public float getFloat(final String key, final float dflt) {
|
|
final String s = removeByteOrderMark(super.get(key));
|
|
if (s == null) return dflt;
|
|
try {
|
|
return Float.parseFloat(s);
|
|
} catch (final NumberFormatException e) {
|
|
return dflt;
|
|
}
|
|
}
|
|
|
|
public boolean getBoolean(final String key, final boolean dflt) {
|
|
String s = removeByteOrderMark(super.get(key));
|
|
if (s == null) return dflt;
|
|
s = s.toLowerCase();
|
|
return s.equals("true") || s.equals("on") || s.equals("1");
|
|
}
|
|
|
|
public boolean hasValue(final String key) {
|
|
final String s = super.get(key);
|
|
return (s != null && !s.isEmpty());
|
|
}
|
|
|
|
// returns a set of all values where their key mappes the keyMapper
|
|
public String[] getAll(final String keyMapper) {
|
|
// the keyMapper may contain regular expressions as defined in String.matches
|
|
// this method is particulary useful when parsing the result of checkbox forms
|
|
final List<String> v = new ArrayList<String>();
|
|
for (final Map.Entry<String, String> entry: entrySet()) {
|
|
if (entry.getKey().matches(keyMapper)) {
|
|
v.add(entry.getValue());
|
|
}
|
|
}
|
|
|
|
return v.toArray(new String[0]);
|
|
}
|
|
|
|
// put all elements of another hashtable into the own table
|
|
public void putAll(final serverObjects add) {
|
|
for (Map.Entry<String, String> entry: add.entrySet()) {
|
|
put(entry.getKey(), entry.getValue());
|
|
}
|
|
}
|
|
|
|
// convenience methods for storing and loading to a file system
|
|
public void store(final File f) throws IOException {
|
|
BufferedOutputStream fos = null;
|
|
try {
|
|
fos = new BufferedOutputStream(new FileOutputStream(f));
|
|
final StringBuilder line = new StringBuilder(64);
|
|
for (final Map.Entry<String, String> entry : entrySet()) {
|
|
line.delete(0, line.length());
|
|
line.append(entry.getKey());
|
|
line.append("=");
|
|
line.append(patternNewline.matcher(entry.getValue()).replaceAll("\\\\n"));
|
|
line.append("\r\n");
|
|
|
|
fos.write(UTF8.getBytes(line.toString()));
|
|
}
|
|
} finally {
|
|
if (fos != null) {
|
|
try {
|
|
fos.flush();
|
|
fos.close();
|
|
} catch (final Exception e){}
|
|
}
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Defines the localization state of this object.
|
|
* Currently it is used for numbers added with the putNum() methods only.
|
|
* @param loc if <code>true</code> store numbers in a localized format, otherwise
|
|
* use a default english locale without grouping.
|
|
* @see Formatter#setLocale(String)
|
|
*/
|
|
public void setLocalized(final boolean loc) {
|
|
this.localized = loc;
|
|
}
|
|
|
|
@Override
|
|
public Object clone() {
|
|
return super.clone();
|
|
}
|
|
|
|
/**
|
|
* output the objects in a HTTP GET syntax
|
|
*/
|
|
@Override
|
|
public String toString() {
|
|
if (this.isEmpty()) return "";
|
|
final StringBuilder param = new StringBuilder(this.size() * 40);
|
|
for (final Map.Entry<String, String> entry: this.entrySet()) {
|
|
param.append(MultiProtocolURI.escape(entry.getKey()));
|
|
param.append('=');
|
|
param.append(MultiProtocolURI.escape(entry.getValue()));
|
|
param.append('&');
|
|
}
|
|
param.setLength(param.length() - 1);
|
|
return param.toString();
|
|
}
|
|
|
|
}
|