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| package org.apache.xindice.xml; |
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| import org.w3c.dom.Node; |
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| import org.w3c.dom.DOMException; |
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| import org.w3c.dom.Element; |
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| import org.w3c.dom.NamedNodeMap; |
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| import org.w3c.dom.Attr; |
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| import org.w3c.dom.ProcessingInstruction; |
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| import org.w3c.dom.NodeList; |
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| import org.apache.commons.logging.LogFactory; |
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| import org.apache.commons.logging.Log; |
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| import org.apache.xindice.util.StringUtilities; |
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| import org.apache.xindice.util.XMLUtilities; |
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| |
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| import java.io.BufferedWriter; |
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| import java.io.IOException; |
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| import java.io.OutputStream; |
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| import java.io.OutputStreamWriter; |
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| import java.io.StringWriter; |
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| import java.io.UnsupportedEncodingException; |
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| import java.io.Writer; |
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| public class Xml2HtmlWriter { |
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| |
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| private static final String indent = " "; |
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| private Node node = null; |
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| private static final Log log = LogFactory.getLog(Xml2HtmlWriter.class); |
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| |
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| public Xml2HtmlWriter(Node node) throws DOMException {
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| this.node = node;
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| } |
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| public void write(Writer writer) throws IOException {
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| write(node, writer);
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| } |
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| public void write(OutputStream output) throws IOException {
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| write(node, output);
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| } |
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| public String toString() {
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| return toString(node);
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| } |
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| private static void writeNode(Writer writer, Node node, int currentIndent) throws IOException {
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| short type = node.getNodeType();
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| switch (type) {
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| case Node.DOCUMENT_NODE: {
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| writeIndent(writer, currentIndent);
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| writer.write("<span class=\"xml-processing\"><?xml ");
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| writer.write(" version=\"1.0\"?></span><br />\n");
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| currentIndent--;
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| writeChildren(writer, node, currentIndent);
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| break;
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| } |
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| |
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| case Node.DOCUMENT_FRAGMENT_NODE: {
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| writeChildren(writer, node, currentIndent);
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| break;
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| } |
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| case Node.DOCUMENT_TYPE_NODE: {
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| break;
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| } |
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| |
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| case Node.ELEMENT_NODE: {
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| Element e = (Element) node;
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| String n = e.getTagName();
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| writeIndent(writer, currentIndent);
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| writer.write("<span class=\"xml-misc\"><</span>");
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| writer.write("<span class=\"xml-element-name\">");
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| writer.write(n);
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| writer.write("</span>");
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| NamedNodeMap a = e.getAttributes();
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| int size = a.getLength();
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| for (int i = 0; i < size; i++) {
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| Attr att = (Attr) a.item(i);
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| writer.write(' ');
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| writeNode(writer, att, currentIndent);
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| } |
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| |
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| if (e.hasChildNodes()) {
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| writer.write("<span class=\"xml-misc\">></span><br />\n");
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| writeChildren(writer, node, currentIndent);
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| writeIndent(writer, currentIndent);
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| writer.write("<span class=\"xml-misc\"></</span>");
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| writer.write("<span class=\"xml-element-name\">");
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| writer.write(n);
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| writer.write("</span><span class=\"xml-misc\">></span><br />\n");
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| } else { |
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| writer.write("<span class=\"xml-misc\"> /></span><br />\n");
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| } |
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| break;
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| } |
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| |
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| case Node.ATTRIBUTE_NODE: {
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| Attr a = (Attr) node;
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| writer.write("<span class=\"xml-attribute-name\">");
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| writer.write(a.getName());
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| writer.write("</span><span class=\"xml-misc\">=\"</span>");
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| writer.write("<span class=\"xml-attribute-content\">");
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| writeEscapedText(writer, XMLUtilities.escape(a.getValue()), currentIndent);
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| writer.write("</span><span class=\"xml-misc\">\"</span>");
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| break;
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| } |
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| case Node.ENTITY_REFERENCE_NODE: {
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| break;
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| } |
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| case Node.ENTITY_NODE: {
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| break;
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| } |
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| case Node.NOTATION_NODE: {
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| break;
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| } |
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| case Node.PROCESSING_INSTRUCTION_NODE: {
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| ProcessingInstruction pi = (ProcessingInstruction) node;
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| writeIndent(writer, currentIndent);
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| writer.write("<span class=\"xml-processing\"><?");
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| writer.write(pi.getTarget());
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| writer.write(" ");
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| writer.write(pi.getData());
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| writer.write("?></span><br />\n");
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| break;
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| } |
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| |
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| case Node.TEXT_NODE: {
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| if (!StringUtilities.isBlank(node.getNodeValue())) {
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| writeIndent(writer, currentIndent);
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| writer.write("<span class=\"xml-element-content\">");
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| writeEscapedText(writer, XMLUtilities.escape(node.getNodeValue().trim()), currentIndent);
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| writer.write("</span><br />");
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| } |
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| break;
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| } |
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| |
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| case Node.CDATA_SECTION_NODE: {
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| writeIndent(writer, currentIndent);
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| writer.write("<span class=\"xml-cdata\"><![CDATA[");
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| writeEscapedText(writer, node.getNodeValue(), currentIndent);
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| writer.write("]]></span><br />");
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| break;
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| } |
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| case Node.COMMENT_NODE: {
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| writeIndent(writer, currentIndent);
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| writer.write("<span class=\"xml-comment\"><!--");
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| writeEscapedText(writer, node.getNodeValue(), currentIndent);
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| writer.write("--></span><br />");
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| break;
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| } |
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| } |
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| } |
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| private static void writeChildren(Writer writer, Node node, int currentIndent) throws IOException {
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| NodeList l = node.getChildNodes();
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| int size = l.getLength();
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| currentIndent++;
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| for (int i = 0; i < size; i++) {
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| writeNode(writer, l.item(i), currentIndent);
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| } |
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| } |
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| private static void writeEscapedText(Writer writer, String text, int currentIndent) throws IOException {
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| char[] value = text.toCharArray();
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| String outval = null;
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| int start = 0;
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| int len = 0;
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| for (int i = 0; i < value.length; i++) {
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| switch (value[i]) {
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| case '&':
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| outval = "&";
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| break;
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| case '\'':
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| outval = "'";
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| break;
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| case '\"':
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| outval = """;
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| break;
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| case '<':
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| outval = "<";
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| break;
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| case '>' :
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| outval = ">";
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| break;
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| case '\n':
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| outval = "<br />";
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| for (int i1 = 0; i1 < currentIndent; i1++) {
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| outval += indent;
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| } |
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| break;
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| default:
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| len++;
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| break;
|
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| } |
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| |
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| if (outval != null) {
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| if (len > 0) {
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| writer.write(value, start, len);
|
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| } |
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| writer.write(outval);
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| start = i + 1;
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| len = 0;
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| outval = null;
|
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| } |
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| } |
285 |
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| if (len > 0) {
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| writer.write(value, start, len);
|
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| } |
288 |
| } |
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297 |
0
| private static void writeIndent(Writer writer, int currentIndent)
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| throws IOException { |
299 |
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| for (int i = 0; i < currentIndent; i++) {
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300 |
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| writer.write(indent);
|
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| } |
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| } |
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310 |
0
| public static void write(Node node, Writer writer) throws IOException {
|
311 |
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| BufferedWriter buf = new BufferedWriter(writer, 4096);
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| writeNode(buf, node, 0);
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313 |
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| buf.flush();
|
314 |
| } |
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318 |
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320 |
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321 |
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322 |
0
| public static void write(Node node, OutputStream output) throws IOException {
|
323 |
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| try {
|
324 |
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| OutputStreamWriter o = new OutputStreamWriter(output, "utf-8");
|
325 |
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| write(node, o);
|
326 |
| } catch (UnsupportedEncodingException e) { |
327 |
0
| log.error(e);
|
328 |
| } |
329 |
| } |
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332 |
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335 |
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336 |
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337 |
0
| public static String toString(Node node) {
|
338 |
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| StringWriter sw = new StringWriter();
|
339 |
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| try {
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340 |
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| write(node, sw);
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341 |
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| return sw.toString();
|
342 |
| } catch (IOException e) { |
343 |
0
| log.error(e);
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344 |
0
| return null;
|
345 |
| } |
346 |
| } |
347 |
| |
348 |
| } |