| /* |
| * Licensed to the Apache Software Foundation (ASF) under one |
| * or more contributor license agreements. See the NOTICE file |
| * distributed with this work for additional information |
| * regarding copyright ownership. The ASF licenses this file |
| * to you under the Apache License, Version 2.0 (the |
| * "License"); you may not use this file except in compliance |
| * with the License. You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, |
| * software distributed under the License is distributed on an |
| * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY |
| * KIND, either express or implied. See the License for the |
| * specific language governing permissions and limitations |
| * under the License. |
| */ |
| package org.apache.felix.bundlerepository.impl; |
| |
| import java.io.IOException; |
| import java.io.Writer; |
| import java.util.ArrayList; |
| import java.util.List; |
| |
| public class XmlWriter |
| { |
| private final Writer w; |
| private final List elements = new ArrayList(); |
| private boolean empty; |
| private boolean endAttr = true; |
| private boolean indent; |
| |
| public XmlWriter(Writer w) |
| { |
| this(w, true); |
| } |
| |
| public XmlWriter(Writer w, boolean indent) |
| { |
| this.w = w; |
| this.indent = indent; |
| } |
| |
| public XmlWriter indent(int nb) throws IOException |
| { |
| if (indent) |
| { |
| while (nb-- > 0) |
| { |
| w.append(" "); |
| } |
| } |
| return this; |
| } |
| |
| public XmlWriter newLine() throws IOException |
| { |
| if (indent) |
| { |
| w.append("\n"); |
| } |
| return this; |
| } |
| |
| public XmlWriter element(String name) throws IOException |
| { |
| if (!endAttr) |
| { |
| endAttr = true; |
| w.append(">"); |
| } |
| if (!elements.isEmpty()) |
| { |
| newLine(); |
| indent(elements.size()); |
| } |
| w.append("<").append(name); |
| elements.add(name); |
| empty = true; |
| endAttr = false; |
| return this; |
| } |
| |
| public XmlWriter attribute(String name, Object value) throws IOException |
| { |
| if (value != null) |
| { |
| w.append(" ").append(name).append("='").append(encode(value.toString())).append("'"); |
| } |
| return this; |
| } |
| |
| public XmlWriter end() throws IOException |
| { |
| return end(true); |
| } |
| |
| public XmlWriter end(boolean indent) throws IOException |
| { |
| String name = (String) elements.remove(elements.size() - 1); |
| if (!endAttr) |
| { |
| endAttr = true; |
| w.append("/>"); |
| } |
| else |
| { |
| if (indent && !empty) |
| { |
| newLine(); |
| indent(elements.size()); |
| } |
| w.append("</").append(name).append(">"); |
| } |
| empty = false; |
| return this; |
| } |
| |
| public XmlWriter text(Object value) throws IOException |
| { |
| if (!endAttr) |
| { |
| endAttr = true; |
| w.append(">"); |
| } |
| w.append(encode(value.toString())); |
| return this; |
| } |
| |
| public XmlWriter textElement(String name, Object value) throws IOException |
| { |
| if (value != null) |
| { |
| element(name).text(value).end(false); |
| } |
| return this; |
| } |
| |
| private static String encode(Object o) { |
| String s = o != null ? o.toString() : ""; |
| return s.replaceAll("&", "&").replaceAll("<", "<").replaceAll(">", ">").replaceAll("'", "'"); |
| } |
| |
| } |