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Diffstat (limited to 'libjava/gnu/java/util/prefs/NodeWriter.java')
| -rw-r--r-- | libjava/gnu/java/util/prefs/NodeWriter.java | 315 |
1 files changed, 0 insertions, 315 deletions
diff --git a/libjava/gnu/java/util/prefs/NodeWriter.java b/libjava/gnu/java/util/prefs/NodeWriter.java deleted file mode 100644 index 1eed9e66e2d..00000000000 --- a/libjava/gnu/java/util/prefs/NodeWriter.java +++ /dev/null @@ -1,315 +0,0 @@ -/* NodeWriter - Writes and exports preferences nodes to files - Copyright (C) 2001 Free Software Foundation, Inc. - -This file is part of GNU Classpath. - -GNU Classpath 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, or (at your option) -any later version. - -GNU Classpath 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 GNU Classpath; see the file COPYING. If not, write to the -Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA -02110-1301 USA. - -Linking this library statically or dynamically with other modules is -making a combined work based on this library. Thus, the terms and -conditions of the GNU General Public License cover the whole -combination. - -As a special exception, the copyright holders of this library give you -permission to link this library with independent modules to produce an -executable, regardless of the license terms of these independent -modules, and to copy and distribute the resulting executable under -terms of your choice, provided that you also meet, for each linked -independent module, the terms and conditions of the license of that -module. An independent module is a module which is not derived from -or based on this library. If you modify this library, you may extend -this exception to your version of the library, but you are not -obligated to do so. If you do not wish to do so, delete this -exception statement from your version. */ - -package gnu.java.util.prefs; - -import java.io.BufferedWriter; -import java.io.IOException; -import java.io.OutputStream; -import java.io.OutputStreamWriter; -import java.io.Writer; - -import java.util.StringTokenizer; - -import java.util.prefs.*; - -/** - * Writes and exports preferences nodes to files - * - * @author Mark Wielaard (mark@klomp.org) - */ -public class NodeWriter { - - /** The Preferences node to write. */ - private final Preferences prefs; - - /** The bufferedWriter to write the node to. */ - private final BufferedWriter bw; - - /** - * True if the complete sub tree should be written, - * false if only the node should be written. - */ - private boolean subtree; - - /** - * Creates a new NodeWriter for the given preferences node and writer. - */ - public NodeWriter(Preferences prefs, Writer w) { - this.prefs = prefs; - if (w instanceof BufferedWriter) { - this.bw = (BufferedWriter) w; - } else { - this.bw = new BufferedWriter(w); - } - } - - /** - * Creates a new NodeWriter for the given preferences node and - * outputstream. Creates a new OutputStreamWriter. - */ - public NodeWriter(Preferences prefs, OutputStream os) { - this(prefs, new OutputStreamWriter(os)); - } - - /** - * Writes the preference node plus the complete subtree. - */ - public void writePrefsTree() throws BackingStoreException, IOException { - subtree = true; - writeHeader(); - writePreferences(); - bw.flush(); - } - - /** - * Writes only the preference node. - */ - public void writePrefs() throws BackingStoreException, IOException { - subtree = false; - writeHeader(); - writePreferences(); - bw.flush(); - } - - /** - * Writes the standard header. - */ - private void writeHeader() throws BackingStoreException, IOException { - bw.write("<?xml version=\"1.0\"?>"); - bw.newLine(); - bw.newLine(); - bw.write("<!-- GNU Classpath java.util.prefs Preferences "); - - if (prefs.isUserNode()) { - bw.write("user"); - } else { - bw.write("system"); - } - - // root node? - if (prefs.parent() == null) { - bw.write(" root"); - } - - if (subtree) { - bw.write(" tree"); - } else { - bw.write(" node"); - } - - // no root? - if (prefs.parent() != null) { - bw.newLine(); - bw.write(" '"); - bw.write(prefs.absolutePath()); - bw.write('\''); - bw.newLine(); - } - bw.write(" -->"); - bw.newLine(); - bw.newLine(); - } - - /** - * Write the preferences tag and the root. - */ - private void writePreferences() throws BackingStoreException, IOException { - bw.write("<preferences>"); - bw.newLine(); - writeRoot(); - bw.write("</preferences>"); - bw.newLine(); - } - - private void writeRoot() throws BackingStoreException, IOException { - bw.write(" <root type=\""); - if (prefs.isUserNode()) { - bw.write("user"); - } else { - bw.write("system"); - } - bw.write("\"/>"); - - writeRootMap(); - writeNode(); - - bw.write(" </root>"); - bw.newLine(); - } - - private void writeRootMap() throws BackingStoreException, IOException { - // Is it a root node? - if(prefs.parent() == null && prefs.keys().length > 0) { - bw.newLine(); - writeMap(prefs, 2); - } else { - bw.write("<map/>"); - bw.newLine(); - } - } - - /** - * Writes all the parents of the preferences node without any entries. - * Returns the number of parents written, which has to be used as - * argument to <code>writeCloseParents()</code> after writing the node - * itself. - */ - private int writeParents() throws IOException { - int parents; - String path = prefs.absolutePath(); - int lastslash = path.lastIndexOf("/"); - if (lastslash > 0) { - path = path.substring(1, lastslash); - StringTokenizer st = new StringTokenizer(path); - parents = st.countTokens(); - - System.out.println("path: " + path); - System.out.println("parents: " + parents); - - for (int i=0; i<parents; i++) { - String name = st.nextToken(); - indent(i+2); - bw.write("<node name=\"" + name + "\">"); - bw.write("<map/>"); - bw.write("</node>"); - bw.newLine(); - } - } else { - parents = 0; - } - - return parents; - } - - private void writeCloseParents(int parents) throws IOException { - while(parents > 0) { - indent(parents+1); - bw.write("</node>"); - bw.newLine(); - parents--; - } - } - - private void writeNode() throws BackingStoreException, IOException { - int parents = writeParents(); - // root? - int indent; - if (prefs.parent() == null) { - indent = parents+1; - } else { - indent = parents+2; - } - writeNode(prefs, indent); - writeCloseParents(parents); - } - - private void writeNode(Preferences node, int indent) - throws BackingStoreException, IOException - { - // not root? - if (node.parent() != null) { - indent(indent); - bw.write("<node name=\"" + node.name() + "\">"); - if (node.keys().length > 0) { - bw.newLine(); - } - writeMap(node, indent+1); - } - - if (subtree) { - String[] children = node.childrenNames(); - for (int i=0; i<children.length; i++) { - Preferences child = node.node(children[i]); - writeNode(child, indent+1); - } - } - - // not root? - if (node.parent() != null) { - indent(indent); - bw.write("</node>"); - bw.newLine(); - } - } - - private void writeMap(Preferences node, int indent) - throws BackingStoreException, IOException - { - // construct String used for indentation - StringBuffer indentBuffer = new StringBuffer(2*indent); - for (int i=0; i < indent; i++) - indentBuffer.append(" "); - String indentString = indentBuffer.toString(); - - if (node.keys().length > 0) { - bw.write(indentString); - bw.write("<map>"); - bw.newLine(); - writeEntries(node, indentString + " "); - bw.write(indentString); - bw.write("</map>"); - } else { - bw.write("<map/>"); - } - bw.newLine(); - } - - private void writeEntries(Preferences node, String indent) - throws BackingStoreException, IOException - { - String[] keys = node.keys(); - for(int i = 0; i < keys.length; i++) { - String value = node.get(keys[i], null); - if (value == null) { - throw new BackingStoreException("null value for key '" - + keys[i] + "'"); - } - - bw.write(indent); - bw.write("<entry key=\"" + keys[i] + "\"" - + " value=\"" + value + "\"/>"); - bw.newLine(); - } - } - - private void indent(int x) throws IOException { - for (int i=0; i<x; i++) { - bw.write(" "); - } - } -} |
