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transfer service : work in progress.
implementation of transfer requsite.
API change isComplete to isSync
git-svn-id: https://svn.alfresco.com/repos/alfresco-enterprise/alfresco/HEAD/root@21130 c4b6b30b-aa2e-2d43-bbcb-ca4b014f7261
This commit is contained in:
Mark Rogers
@@ -0,0 +1,247 @@
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/*
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* Copyright (C) 2009-2010 Alfresco Software Limited.
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*
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* This file is part of Alfresco
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*
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* Alfresco is free software: you can redistribute it and/or modify
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* it under the terms of the GNU Lesser General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* Alfresco is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public License
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* along with Alfresco. If not, see <http://www.gnu.org/licenses/>.
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*/
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package org.alfresco.repo.transfer.requisite;
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import java.util.Collection;
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import java.util.HashMap;
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import java.util.HashSet;
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import java.util.LinkedList;
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import java.util.Map;
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import java.util.Map.Entry;
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import org.alfresco.service.cmr.repository.NodeRef;
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import org.alfresco.service.namespace.NamespaceException;
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import org.alfresco.service.namespace.NamespacePrefixResolver;
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import org.alfresco.service.namespace.QName;
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import org.xml.sax.Attributes;
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import org.xml.sax.ContentHandler;
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import org.xml.sax.Locator;
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import org.xml.sax.SAXException;
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import org.xml.sax.helpers.DefaultHandler;
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/**
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* SAX XML Content Handler to read a transfer manifest XML Stream and
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* delegate processing of the manifest to the specified TransferRequsiteProcessor
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*
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* @author Mark Rogers
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*/
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public class XMLTransferRequsiteReader extends DefaultHandler implements ContentHandler, NamespacePrefixResolver
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{
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private TransferRequsiteProcessor processor;
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/**
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* These are the namespaces used within the document - there may be a different mapping to
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* the namespaces of the Data Dictionary.
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*/
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LinkedList<HashMap<String, String>> namespaces = new LinkedList<HashMap<String, String>>();
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final String TRANSFER_URI = RequsiteModel.TRANSFER_MODEL_1_0_URI;
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final String XMLNS_URI = "http://www.w3.org/XML/1998/namespace";
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/*
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* Current State of the parser
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*/
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private StringBuffer buffer;
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private Map<String, Object>props = new HashMap<String, Object>();
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/**
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* Constructor
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* @param processor
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*/
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public XMLTransferRequsiteReader(TransferRequsiteProcessor processor)
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{
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this.processor = processor;
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// prefix to uri map
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HashMap<String, String> namespace = new HashMap<String, String>();
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namespace.put("xmlns", XMLNS_URI);
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namespaces.add(namespace);
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}
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public void startPrefixMapping(String prefix, String uri) throws SAXException
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{
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HashMap<String, String> namespace = namespaces.get(0);
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// prefix is key, URI is value
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namespace.put(prefix, uri);
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}
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public void endPrefixMapping(String prefix) throws SAXException
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{
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HashMap<String, String> namespace = namespaces.get(0);
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// prefix is key, URI is value
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namespace.remove(prefix);
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}
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// Namespace Prefix Resolver implementation below
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/**
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* lookup the prefix for a URI e.g. TRANSFER_URI for xfer
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*/
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public String getNamespaceURI(String prefix) throws NamespaceException
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{
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for(HashMap<String, String> namespace : namespaces)
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{
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String uri = namespace.get(prefix);
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if(uri != null)
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{
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return uri;
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}
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}
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return null;
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}
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/**
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* @param uri
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* @return the prefix
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*/
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public Collection<String> getPrefixes(String namespaceURI) throws NamespaceException
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{
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Collection<String> prefixes = new HashSet<String>();
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for(HashMap<String, String> namespace : namespaces)
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{
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for(Entry<String, String> entry : namespace.entrySet())
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{
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if (namespaceURI.equals(entry.getValue()))
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{
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prefixes.add(entry.getKey());
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}
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}
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}
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return prefixes;
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}
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public Collection<String> getPrefixes()
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{
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Collection<String> prefixes = new HashSet<String>();
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for(HashMap<String, String> namespace : namespaces)
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{
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prefixes.addAll(namespace.keySet());
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}
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return prefixes;
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}
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public Collection<String> getURIs()
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{
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Collection<String> uris = new HashSet<String>();
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for(HashMap<String, String> namespace : namespaces)
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{
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uris.addAll(namespace.values());
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}
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return uris;
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}
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public void startDocument() throws SAXException
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{
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processor.startTransferRequsite();
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}
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public void endDocument() throws SAXException
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{
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processor.endTransferRequsite();
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}
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/**
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* Start Element
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*/
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public void startElement(String uri, String localName, String prefixName, Attributes atts)
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throws SAXException
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{
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QName elementQName = QName.resolveToQName(this, prefixName);
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HashMap<String, String> namespace = new HashMap<String, String>();
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namespaces.addFirst(namespace);
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/**
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* Look for any namespace attributes
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*/
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for(int i = 0; i < atts.getLength(); i++)
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{
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QName attributeQName = QName.resolveToQName(this, atts.getQName(i));
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if(attributeQName.getNamespaceURI().equals(XMLNS_URI))
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{
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namespace.put(attributeQName.getLocalName(), atts.getValue(i));
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}
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}
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if(elementQName == null)
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{
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return;
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}
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if(elementQName.getNamespaceURI().equals(TRANSFER_URI));
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{
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// This is one of the transfer manifest elements
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String elementName = elementQName.getLocalName();
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// Simple and stupid parser for now
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if(elementName.equals(RequsiteModel.LOCALNAME_TRANSFER_REQUSITE))
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{
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// Good we got this
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}
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else if(elementName.equals(RequsiteModel.LOCALNAME_ELEMENT_CONTENT))
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{
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NodeRef nodeRef = new NodeRef(atts.getValue("", "nodeRef"));
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QName qname = QName.createQName(atts.getValue("", "qname"));
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String name = atts.getValue("", "name");
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processor.missingContent(nodeRef, qname, name);
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}
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} // if transfer URI
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} // startElement
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/**
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* End Element
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*/
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@SuppressWarnings("unchecked")
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public void endElement(String uri, String localName, String prefixName) throws SAXException
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{
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namespaces.removeFirst();
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} // end element
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public void ignorableWhitespace(char[] ch, int start, int length) throws SAXException
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{
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//NO-OP
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}
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public void processingInstruction(String target, String data) throws SAXException
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{
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//NO-OP
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}
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public void setDocumentLocator(Locator locator)
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{
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//NO-OP
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}
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public void skippedEntity(String name) throws SAXException
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{
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//NO-OP
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}
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}
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