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Diffstat (limited to 'libjava/classpath/gnu/xml/dom/ls/DomLSSerializer.java')
| -rw-r--r-- | libjava/classpath/gnu/xml/dom/ls/DomLSSerializer.java | 353 |
1 files changed, 353 insertions, 0 deletions
diff --git a/libjava/classpath/gnu/xml/dom/ls/DomLSSerializer.java b/libjava/classpath/gnu/xml/dom/ls/DomLSSerializer.java new file mode 100644 index 000000000..c282b0b9f --- /dev/null +++ b/libjava/classpath/gnu/xml/dom/ls/DomLSSerializer.java @@ -0,0 +1,353 @@ +/* DomLSSerializer.java -- + Copyright (C) 1999,2000,2001 Free Software Foundation, Inc. + +This file is part of GNU Classpath. + +GNU Classpath is free software; you can redistribute it and/or modify +it under the terms of the GNU General Public License as published by +the Free Software Foundation; either version 2, or (at your option) +any later version. + +GNU Classpath is distributed in the hope that it will be useful, but +WITHOUT ANY WARRANTY; without even the implied warranty of +MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU +General Public License for more details. + +You should have received a copy of the GNU General Public License +along with GNU Classpath; see the file COPYING. If not, write to the +Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA +02110-1301 USA. + +Linking this library statically or dynamically with other modules is +making a combined work based on this library. Thus, the terms and +conditions of the GNU General Public License cover the whole +combination. + +As a special exception, the copyright holders of this library give you +permission to link this library with independent modules to produce an +executable, regardless of the license terms of these independent +modules, and to copy and distribute the resulting executable under +terms of your choice, provided that you also meet, for each linked +independent module, the terms and conditions of the license of that +module. An independent module is a module which is not derived from +or based on this library. If you modify this library, you may extend +this exception to your version of the library, but you are not +obligated to do so. If you do not wish to do so, delete this +exception statement from your version. */ + +package gnu.xml.dom.ls; + +import java.io.File; +import java.io.FileOutputStream; +import java.io.IOException; +import java.io.OutputStream; +import java.io.StringWriter; +import java.io.Writer; +import java.net.HttpURLConnection; +import java.net.MalformedURLException; +import java.net.URL; +import java.net.URLConnection; +import java.util.Arrays; +import java.util.List; +import org.w3c.dom.DOMConfiguration; +import org.w3c.dom.DOMException; +import org.w3c.dom.DOMStringList; +import org.w3c.dom.Node; +import org.w3c.dom.ls.LSException; +import org.w3c.dom.ls.LSOutput; +import org.w3c.dom.ls.LSSerializer; +import org.w3c.dom.ls.LSSerializerFilter; +import org.w3c.dom.traversal.NodeFilter; +import gnu.xml.dom.DomDOMException; +import gnu.xml.transform.StreamSerializer; + +/** + * Serialize a DOM node to a stream. + * + * @author <a href='mailto:dog@gnu.org'>Chris Burdess</a> + */ +public class DomLSSerializer + extends StreamSerializer + implements LSSerializer, DOMConfiguration, DOMStringList +{ + + private static final List SUPPORTED_PARAMETERS = + Arrays.asList(new String[] {"discard-default-content", + "xml-declaration"}); + + private LSSerializerFilter filter; + private StreamSerializer serializer; + + public DomLSSerializer() + { + super(); + discardDefaultContent = true; + } + + // -- LSSerializer -- + + public DOMConfiguration getDomConfig() + { + return this; + } + + public String getNewLine() + { + return eol; + } + + public void setNewLine(String newLine) + { + if (newLine == null) + { + newLine = System.getProperty("line.separator"); + } + eol = newLine; + } + + public LSSerializerFilter getFilter() + { + return filter; + } + + public void setFilter(LSSerializerFilter filter) + { + this.filter = filter; + } + + public boolean write(Node node, LSOutput output) + throws LSException + { + OutputStream out = output.getByteStream(); + try + { + if (out == null) + { + String systemId = output.getSystemId(); + try + { + URL url = new URL(systemId); + URLConnection connection = url.openConnection(); + connection.setDoOutput(true); + if (connection instanceof HttpURLConnection) + { + ((HttpURLConnection) connection).setRequestMethod("PUT"); + } + out = connection.getOutputStream(); + } + catch (MalformedURLException e) + { + File file = new File(systemId); + out = new FileOutputStream(file); + } + } + serialize(node, out); + out.flush(); + return true; + } + catch (IOException e) + { + throw new DomLSException(LSException.SERIALIZE_ERR, e); + } + } + + public boolean writeToURI(Node node, String uri) + throws LSException + { + LSOutput output = new DomLSOutput(); + output.setSystemId(uri); + return write(node, output); + } + + public String writeToString(Node node) + throws DOMException, LSException + { + Writer writer = new StringWriter(); + LSOutput output = new DomLSOutput(); + output.setCharacterStream(writer); + write(node, output); + return writer.toString(); + } + + public void serialize(Node node, OutputStream out) + throws IOException + { + if (filter == null) + { + super.serialize(node, out); + } + else + { + int wts = filter.getWhatToShow(); + if (wts != NodeFilter.SHOW_ALL) + { + switch (node.getNodeType()) + { + case Node.ATTRIBUTE_NODE: + if ((wts & NodeFilter.SHOW_ATTRIBUTE) == 0) + { + super.serialize(node, out); + return; + } + break; + case Node.TEXT_NODE: + if ((wts & NodeFilter.SHOW_TEXT) == 0) + { + super.serialize(node, out); + return; + } + break; + case Node.ELEMENT_NODE: + if ((wts & NodeFilter.SHOW_ELEMENT) == 0) + { + super.serialize(node, out); + return; + } + break; + case Node.CDATA_SECTION_NODE: + if ((wts & NodeFilter.SHOW_CDATA_SECTION) == 0) + { + super.serialize(node, out); + return; + } + break; + case Node.COMMENT_NODE: + if ((wts & NodeFilter.SHOW_COMMENT) == 0) + { + super.serialize(node, out); + return; + } + break; + case Node.DOCUMENT_NODE: + if ((wts & NodeFilter.SHOW_DOCUMENT) == 0) + { + super.serialize(node, out); + return; + } + break; + case Node.DOCUMENT_TYPE_NODE: + if ((wts & NodeFilter.SHOW_DOCUMENT_TYPE) == 0) + { + super.serialize(node, out); + return; + } + break; + case Node.PROCESSING_INSTRUCTION_NODE: + if ((wts & NodeFilter.SHOW_PROCESSING_INSTRUCTION) == 0) + { + super.serialize(node, out); + return; + } + break; + case Node.DOCUMENT_FRAGMENT_NODE: + if ((wts & NodeFilter.SHOW_DOCUMENT_FRAGMENT) == 0) + { + super.serialize(node, out); + return; + } + break; + case Node.ENTITY_NODE: + if ((wts & NodeFilter.SHOW_ENTITY) == 0) + { + super.serialize(node, out); + return; + } + break; + case Node.ENTITY_REFERENCE_NODE: + if ((wts & NodeFilter.SHOW_ENTITY_REFERENCE) == 0) + { + super.serialize(node, out); + return; + } + break; + case Node.NOTATION_NODE: + if ((wts & NodeFilter.SHOW_NOTATION) == 0) + { + super.serialize(node, out); + return; + } + break; + } + } + switch (filter.acceptNode(node)) + { + case NodeFilter.FILTER_ACCEPT: + super.serialize(node, out); + break; + case NodeFilter.FILTER_REJECT: + break; + case NodeFilter.FILTER_SKIP: + Node first = node.getFirstChild(); + if (first != null) + { + serialize(first, out); + } + break; + } + } + } + + // -- DOMConfiguration -- + + public void setParameter(String name, Object value) + throws DOMException + { + if ("discard-default-content".equals(name)) + { + discardDefaultContent = "true".equals(value.toString()); + } + else if ("xml-declaration".equals(name)) + { + xmlDeclaration = "false".equals(value.toString()); + } + else + { + throw new DomDOMException(DOMException.NOT_SUPPORTED_ERR); + } + } + + public Object getParameter(String name) + throws DOMException + { + if ("discard-default-content".equals(name)) + { + return discardDefaultContent ? "true" : "false"; + } + else if ("xml-declaration".equals(name)) + { + return xmlDeclaration ? "true" : "false"; + } + else + { + throw new DomDOMException(DOMException.NOT_SUPPORTED_ERR); + } + } + + public boolean canSetParameter(String name, Object value) + { + return contains(name); + } + + public DOMStringList getParameterNames() + { + return this; + } + + // -- DOMStringList -- + + public String item(int i) + { + return (String) SUPPORTED_PARAMETERS.get(i); + } + + public int getLength() + { + return SUPPORTED_PARAMETERS.size(); + } + + public boolean contains(String str) + { + return SUPPORTED_PARAMETERS.contains(str); + } + +} |