| /* |
| * Copyright 1999-2004 The Apache Software Foundation. |
| * |
| * Licensed under the Apache License, Version 2.0 (the "License"); |
| * you may not use this file except in compliance with the License. |
| * You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| package org.apache.cocoon.transformation.helpers; |
| |
| import org.apache.avalon.framework.parameters.Parameters; |
| import org.apache.excalibur.source.SourceParameters; |
| import org.xml.sax.Attributes; |
| import org.xml.sax.SAXException; |
| |
| import java.util.Iterator; |
| |
| |
| /** |
| * This class records SAX Events and generates Parameters from them |
| * The xml is flat and consists of elements which all have exactly one text node: |
| * <parone>value_one<parone> |
| * <partwo>value_two<partwo> |
| * |
| * @author <a href="mailto:cziegeler@s-und-n.de">Carsten Ziegeler</a> |
| * @version CVS $Id: ParametersRecorder.java,v 1.2 2004/03/05 13:03:00 bdelacretaz Exp $ |
| */ |
| public final class ParametersRecorder |
| extends NOPRecorder { |
| |
| private SourceParameters parameters; |
| private String key; |
| private StringBuffer buffer; |
| |
| /** |
| * If source is null a new Parameters object is created |
| * Otherwise they are joined. |
| */ |
| public ParametersRecorder() { |
| super(); |
| this.parameters = new SourceParameters(); |
| } |
| |
| public SourceParameters getParameters(Parameters source) { |
| if (source != null) { |
| String[] names = source.getNames(); |
| // Iterator names = source.getParameterNames(); |
| if (names != null) { |
| String currentParameterName; |
| for(int i=0; i<names.length; i++) { |
| currentParameterName = names[i]; |
| // while (names.hasNext() == true) { |
| // currentParameterName = (String)names.next(); |
| this.parameters.setParameter(currentParameterName, source.getParameter(currentParameterName, "")); |
| } |
| } |
| } |
| return parameters; |
| } |
| |
| public SourceParameters getParameters(SourceParameters source) { |
| if (source != null) { |
| Iterator iter = source.getParameterNames(); |
| Iterator valuesIter; |
| String value, parName; |
| while (iter.hasNext() == true) { |
| parName = (String)iter.next(); |
| valuesIter = source.getParameterValues(parName); |
| while (valuesIter.hasNext() == true) { |
| value = (String)valuesIter.next(); |
| this.parameters.setParameter(parName, value); |
| } |
| } |
| } |
| return parameters; |
| } |
| |
| public void startElement(String namespace, String name, String raw, |
| Attributes attr) |
| throws SAXException { |
| if (this.key == null) { |
| this.key = name; |
| this.buffer = new StringBuffer(); |
| } |
| } |
| |
| public void endElement(String namespace, String name, String raw) |
| throws SAXException { |
| if (this.key != null && this.key.equals(name) == true) { |
| String value = this.buffer.toString().trim(); |
| if (value.length() > 0) { |
| this.parameters.setParameter(this.key, value); |
| } |
| this.buffer = null; |
| this.key = null; |
| } |
| } |
| |
| public void characters(char ary[], int start, int length) |
| throws SAXException { |
| if (this.key != null && this.buffer != null) { |
| String value = new String(ary, start, length).trim(); |
| if (value.length() > 0) { |
| buffer.append(value); |
| } else { |
| buffer.append(' '); |
| } |
| } |
| } |
| |
| } |