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/*
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* Copyright (c) 2009 Nokia Corporation and/or its subsidiary(-ies).
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* All rights reserved.
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* This component and the accompanying materials are made available
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* under the terms of the License "Eclipse Public License v1.0"
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* which accompanies this distribution, and is available
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* at the URL "http://www.eclipse.org/legal/epl-v10.html".
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*
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* Initial Contributors:
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* Nokia Corporation - initial contribution.
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*
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* Contributors:
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*
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* Description:
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*
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*/
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package com.nokia.epdt.plugins.s60.pan;
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import java.io.FileReader;
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import java.io.FileWriter;
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import java.io.IOException;
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import java.io.LineNumberReader;
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import java.util.Enumeration;
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import java.util.LinkedList;
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import java.util.Properties;
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/**
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*
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* Class PropSets Contains a number of property sets - Sections, each Section is
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* titled: [title1] property11= value11 property12= value12
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*
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* [titleN] propertyNK= valueNK
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*
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*/
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public class PropSets {
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LinkedList sections = new LinkedList();
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private class Section {
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private String title = new String();
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private Properties props = new Properties();
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public Properties getProps() {
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return props;
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}
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public void setTitle(String title) {
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this.title = title;
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}
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public String getTitle() {
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return title;
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}
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public String getValue(String key) {
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return (String) props.get(key);
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}
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public void setValue(String key, String value) {
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props.put(key, value);
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}
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/**
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* Function for saving a section into FileOutputStream
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*
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* @param writer
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* @throws IOException
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*/
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public void save(FileWriter writer) throws IOException {
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String newLine = System.getProperty("line.separator");
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writer.write(title + newLine);
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// props.store(writer, null);
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Enumeration keys = props.keys();
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while (keys.hasMoreElements()) {
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String key = (String) keys.nextElement();
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writer.write(key + "= " + props.getProperty(key) + newLine);
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}
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writer.write(newLine);
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}
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}
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/**
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* Loading sections from file
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*/
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public void load(FileReader reader) throws IOException {
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LineNumberReader lineReader = new LineNumberReader(reader);
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Section currentSection = null;
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String currentLine;
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while ((currentLine = lineReader.readLine()) != null) {
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if (currentLine.startsWith("[") && currentLine.endsWith("]")) {
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// Found a title, i.e. new section set the new section
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// to be current, the old one will be garbage-collected
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currentSection = new Section();
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currentSection.setTitle(currentLine);
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sections.add(currentSection);
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} else// Found a property
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{
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if (currentSection != null) {
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// if there is no current section, we didn't find a
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// title first therefore we skip the property
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String[] propPair;// = new String[2];
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propPair = currentLine.toString().split("= ", 2);
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if (propPair.length == 2) {
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// If we split successfully, add key-value pair,
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// if not - skip the line
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currentSection.getProps().put(propPair[0], propPair[1]);
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}
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}
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}
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}
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}
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/**
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* Saving Sections to a file
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*
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*/
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public void save(FileWriter writer) throws IOException {
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for (int i = 0; i < sections.size(); i++) {
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((Section) sections.get(i)).save(writer);
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}
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writer.flush();
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}
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/**
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* Function returns a property value, specified by section name and key
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*
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* @param sectionName
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* @param key
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* @return
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*/
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public String getValue(String sectionName, String key) {
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for (int i = 0; i < sections.size(); i++) {
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if (sectionName.equals(((Section) sections.get(i)).getTitle())) {
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// Found specified section
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return ((Section) sections.get(i)).getValue(key);
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}
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}
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return null;
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}
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/**
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* Function sets a property value, specified by section name and key
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*
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* @param sectionName
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* @param key
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* @return 0=success, -1 = error
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*/
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public int setValue(String sectionName, String key, String value) {
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for (int i = 0; i < sections.size(); i++) {
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if (sectionName.equals(((Section) sections.get(i)).getTitle())) {
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// Found specified section
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((Section) sections.get(i)).setValue(key, value);
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return 0;
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}
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}
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return -1;
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}
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} |