| /* 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., 59 Temple Place, Suite 330, Boston, MA |
| 02111-1307 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); |
| } |
| |
| } |
| |
