| /* |
| * Licensed to the Apache Software Foundation (ASF) under one |
| * or more contributor license agreements. See the NOTICE file |
| * distributed with this work for additional information |
| * regarding copyright ownership. The ASF licenses this file |
| * to you 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.axiom.truth; |
| |
| import java.util.HashMap; |
| import java.util.Iterator; |
| import java.util.Map; |
| |
| import javax.xml.namespace.QName; |
| |
| import org.apache.axiom.om.OMAttribute; |
| import org.apache.axiom.om.OMComment; |
| import org.apache.axiom.om.OMContainer; |
| import org.apache.axiom.om.OMDocType; |
| import org.apache.axiom.om.OMDocument; |
| import org.apache.axiom.om.OMElement; |
| import org.apache.axiom.om.OMEntityReference; |
| import org.apache.axiom.om.OMNamespace; |
| import org.apache.axiom.om.OMNode; |
| import org.apache.axiom.om.OMProcessingInstruction; |
| import org.apache.axiom.om.OMText; |
| import org.apache.axiom.truth.xml.spi.Event; |
| import org.apache.axiom.truth.xml.spi.Traverser; |
| import org.apache.axiom.truth.xml.spi.TraverserException; |
| |
| final class AxiomTraverser implements Traverser { |
| private final OMContainer root; |
| private final boolean expandEntityReferences; |
| private OMNode node; |
| private boolean visited; |
| |
| AxiomTraverser(OMContainer root, boolean expandEntityReferences) { |
| this.root = root; |
| this.expandEntityReferences = expandEntityReferences; |
| } |
| |
| @Override |
| public Event next() throws TraverserException { |
| if (node == null) { |
| if (root instanceof OMDocument) { |
| node = ((OMDocument)root).getFirstOMChild(); |
| } else { |
| node = (OMElement)root; |
| } |
| } else if (!visited && node instanceof OMElement) { |
| OMNode firstChild = ((OMElement)node).getFirstOMChild(); |
| if (firstChild != null) { |
| node = firstChild; |
| } else { |
| visited = true; |
| } |
| } else { |
| OMNode nextSibling = node.getNextOMSibling(); |
| if (node == root) { |
| return null; |
| } else if (nextSibling != null) { |
| node = nextSibling; |
| visited = false; |
| } else { |
| OMContainer parent = node.getParent(); |
| if (parent instanceof OMDocument) { |
| return null; |
| } else { |
| node = (OMElement)parent; |
| visited = true; |
| } |
| } |
| } |
| switch (node.getType()) { |
| case OMNode.DTD_NODE: |
| return Event.DOCUMENT_TYPE; |
| case OMNode.ELEMENT_NODE: |
| return visited ? Event.END_ELEMENT : Event.START_ELEMENT; |
| case OMNode.TEXT_NODE: |
| return Event.TEXT; |
| case OMNode.SPACE_NODE: |
| return Event.WHITESPACE; |
| case OMNode.ENTITY_REFERENCE_NODE: |
| if (expandEntityReferences) { |
| throw new UnsupportedOperationException(); |
| } else { |
| return Event.ENTITY_REFERENCE; |
| } |
| case OMNode.COMMENT_NODE: |
| return Event.COMMENT; |
| case OMNode.CDATA_SECTION_NODE: |
| return Event.CDATA_SECTION; |
| case OMNode.PI_NODE: |
| return Event.PROCESSING_INSTRUCTION; |
| default: |
| throw new IllegalStateException(); |
| } |
| } |
| |
| @Override |
| public String getRootName() { |
| return ((OMDocType)node).getRootName(); |
| } |
| |
| @Override |
| public String getPublicId() { |
| return ((OMDocType)node).getPublicId(); |
| } |
| |
| @Override |
| public String getSystemId() { |
| return ((OMDocType)node).getSystemId(); |
| } |
| |
| @Override |
| public QName getQName() { |
| return ((OMElement)node).getQName(); |
| } |
| |
| @Override |
| public Map<QName,String> getAttributes() { |
| Map<QName,String> attributes = null; |
| for (Iterator<OMAttribute> it = ((OMElement)node).getAllAttributes(); it.hasNext(); ) { |
| OMAttribute attr = it.next(); |
| if (attributes == null) { |
| attributes = new HashMap<QName,String>(); |
| } |
| attributes.put(attr.getQName(), attr.getAttributeValue()); |
| } |
| return attributes; |
| } |
| |
| @Override |
| public Map<String, String> getNamespaces() { |
| Map<String,String> namespaces = null; |
| for (Iterator<OMNamespace> it = ((OMElement)node).getAllDeclaredNamespaces(); it.hasNext(); ) { |
| OMNamespace ns = it.next(); |
| if (namespaces == null) { |
| namespaces = new HashMap<String,String>(); |
| } |
| namespaces.put(ns.getPrefix(), ns.getNamespaceURI()); |
| } |
| return namespaces; |
| } |
| |
| @Override |
| public String getText() { |
| switch (node.getType()) { |
| case OMNode.TEXT_NODE: |
| case OMNode.SPACE_NODE: |
| case OMNode.CDATA_SECTION_NODE: |
| return ((OMText)node).getText(); |
| case OMNode.COMMENT_NODE: |
| return ((OMComment)node).getValue(); |
| default: |
| throw new IllegalStateException(); |
| } |
| } |
| |
| @Override |
| public String getEntityName() { |
| return ((OMEntityReference)node).getName(); |
| } |
| |
| @Override |
| public String getPITarget() { |
| return ((OMProcessingInstruction)node).getTarget(); |
| } |
| |
| @Override |
| public String getPIData() { |
| return ((OMProcessingInstruction)node).getValue(); |
| } |
| } |