87 lines
1.6 KiB
Java
87 lines
1.6 KiB
Java
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package zutil.parser.json;
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import java.io.OutputStream;
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import java.io.PrintStream;
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import java.io.PrintWriter;
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import java.util.Iterator;
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import zutil.parser.json.JSONNode.JSONType;
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/**
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* Writes An JSONNode to an String or stream
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*
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* @author Ziver
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*/
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public class JSONWriter {
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private PrintStream out;
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/**
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* Creates a new instance of the writer
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*
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* @param out the OutputStream that the Nodes will be sent to
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*/
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public JSONWriter(OutputStream out){
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this.out = new PrintStream(out);
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}
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/**
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* Writes the specified node to the stream
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*
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* @param root is the root node
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*/
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public void write(JSONNode root){
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boolean first = true;
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switch(root.getType()){
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// Write Map
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case Map:
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out.print('{');
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Iterator<String> it = root.keyIterator();
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while(it.hasNext()){
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if(!first)
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out.print(", ");
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String key = it.next();
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try{
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out.print( Integer.parseInt(key) );
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}catch(Exception e){
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out.print('\"');
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out.print(key);
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out.print('\"');
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}
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out.print(": ");
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write( root.get(key) );
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first = false;
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}
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out.print('}');
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break;
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// Write an list
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case List:
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out.print('[');
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for(JSONNode node : root){
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if(!first)
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out.print(", ");
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write( node );
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first = false;
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}
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out.print(']');
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break;
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default:
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if(root.getType() == JSONType.String){
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out.print('\"');
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out.print(root.toString());
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out.print('\"');
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} else
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out.print(root.toString());
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break;
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}
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out.flush();
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}
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/**
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* Closes the internal stream
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*/
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public void close(){
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out.close();
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}
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}
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