root / org.gvsig.toolbox / trunk / org.gvsig.toolbox / org.gvsig.toolbox.algorithm / src / main / java / org / json / JSONStringer.java @ 59
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package org.json; |
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/*
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Copyright (c) 2006 JSON.org
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Permission is hereby granted, free of charge, to any person obtaining a copy
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of this software and associated documentation files (the "Software"), to deal
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in the Software without restriction, including without limitation the rights
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to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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copies of the Software, and to permit persons to whom the Software is
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furnished to do so, subject to the following conditions:
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The above copyright notice and this permission notice shall be included in all
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copies or substantial portions of the Software.
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The Software shall be used for Good, not Evil.
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THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
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SOFTWARE.
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*/
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import java.io.StringWriter; |
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/**
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* JSONStringer provides a quick and convenient way of producing JSON text. The texts produced strictly conform to JSON syntax
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* rules. No whitespace is added, so the results are ready for transmission or storage. Each instance of JSONStringer can produce
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* one JSON text.
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* <p>
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* A JSONStringer instance provides a <code>value</code> method for appending values to the text, and a <code>key</code>
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* method for adding keys before values in objects. There are <code>array</code> and <code>endArray</code> methods that make
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* and bound array values, and <code>object</code> and <code>endObject</code> methods which make and bound object values. All
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* of these methods return the JSONWriter instance, permitting cascade style. For example,
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*
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* <pre>
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* myString = new JSONStringer().object().key("JSON").value("Hello, World!").endObject().toString();
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* </pre>
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*
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* which produces the string
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*
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* <pre>
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* {"JSON":"Hello, World!"}
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* </pre>
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*
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* <p>
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* The first method called must be <code>array</code> or <code>object</code>. There are no methods for adding commas or
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* colons. JSONStringer adds them for you. Objects and arrays can be nested up to 20 levels deep.
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* <p>
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* This can sometimes be easier than using a JSONObject to build a string.
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*
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* @author JSON.org
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* @version 2
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*/
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public class JSONStringer |
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extends
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JSONWriter { |
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/**
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* Make a fresh JSONStringer. It can be used to build one JSON text.
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*/
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public JSONStringer() {
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super(new StringWriter()); |
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} |
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/**
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* Return the JSON text. This method is used to obtain the product of the JSONStringer instance. It will return
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* <code>null</code> if there was a problem in the construction of the JSON text (such as the calls to <code>array</code>
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* were not properly balanced with calls to <code>endArray</code>).
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*
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* @return The JSON text.
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*/
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@Override
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public String toString() { |
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return this.mode == 'd' ? this.writer.toString() : null; |
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} |
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} |