org.apache.taverna.scufl2.translator.t2flow.t23activities.XPathActivityParser.java Source code

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Here is the source code for org.apache.taverna.scufl2.translator.t2flow.t23activities.XPathActivityParser.java

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package org.apache.taverna.scufl2.translator.t2flow.t23activities;
/*
 *
 * 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.
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*/

import static org.apache.taverna.scufl2.translator.t2flow.T2FlowParser.ravenURI;

import java.net.URI;
import java.net.URL;
import java.util.Arrays;
import java.util.List;

import org.apache.taverna.scufl2.api.configurations.Configuration;
import org.apache.taverna.scufl2.api.io.ReaderException;
import org.apache.taverna.scufl2.translator.t2flow.ParserState;
import org.apache.taverna.scufl2.translator.t2flow.T2FlowParser;
import org.apache.taverna.scufl2.translator.t2flow.defaultactivities.AbstractActivityParser;
import org.apache.taverna.scufl2.xml.t2flow.jaxb.ConfigBean;
import org.apache.taverna.scufl2.xml.t2flow.jaxb.XPathConfig;
import org.apache.taverna.scufl2.xml.t2flow.jaxb.XPathNamespaceMap.Entry;

import com.fasterxml.jackson.databind.node.ArrayNode;
import com.fasterxml.jackson.databind.node.ObjectNode;

public class XPathActivityParser extends AbstractActivityParser {
    private static final String ACTIVITY_XSD = "/org/apache/taverna/scufl2/translator/t2flow/xsd/xpathactivity.xsd";
    private static URI xpathRavenURI = ravenURI.resolve("net.sf.taverna.t2.activities/xpath-activity/");
    private static URI ravenUIURI = ravenURI.resolve("net.sf.taverna.t2.ui-activities/xpath-activity/");
    private static String className = "net.sf.taverna.t2.activities.xpath.XPathActivity";
    public static URI ACTIVITY_URI = URI.create("http://ns.taverna.org.uk/2010/activity/xpath");
    public static URI NAMESPACE_MAPPING_URI = URI
            .create("http://ns.taverna.org.uk/2010/activity/xpath/NamespaceMapping");

    @Override
    public boolean canHandlePlugin(URI activityURI) {
        String activityUriStr = activityURI.toASCIIString();
        return (activityUriStr.startsWith(xpathRavenURI.toASCIIString())
                || activityUriStr.startsWith(ravenUIURI.toASCIIString())) && activityUriStr.endsWith(className);
    }

    @Override
    public List<URI> getAdditionalSchemas() {
        URL xpathXsd = XPathActivityParser.class.getResource(ACTIVITY_XSD);
        try {
            return Arrays.asList(xpathXsd.toURI());
        } catch (Exception e) {
            throw new IllegalStateException("Can't find XPath schema " + xpathXsd);
        }
    }

    @Override
    public URI mapT2flowRavenIdToScufl2URI(URI t2flowActivity) {
        return ACTIVITY_URI;
    }

    @Override
    public Configuration parseConfiguration(T2FlowParser t2FlowParser, ConfigBean configBean,
            ParserState parserState) throws ReaderException {

        XPathConfig xpathConfig = unmarshallConfig(t2FlowParser, configBean, "xstream", XPathConfig.class);

        Configuration configuration = new Configuration();
        configuration.setParent(parserState.getCurrentProfile());
        parserState.setCurrentConfiguration(configuration);

        try {

            ObjectNode json = (ObjectNode) configuration.getJson();
            configuration.setType(ACTIVITY_URI.resolve("#Config"));

            String xmlDocument = xpathConfig.getXmlDocument();
            if (xmlDocument != null) {
                json.put("exampleXmlDocument", xmlDocument);
            }

            String xpathExpression = xpathConfig.getXpathExpression();
            json.put("xpathExpression", xpathExpression);

            ArrayNode namespaceMap = json.arrayNode();
            json.put("xpathNamespaceMap", namespaceMap);

            // TODO look at why the schema translation here is so wrong
            for (Entry list : xpathConfig.getXpathNamespaceMap().getEntry()) {
                String namespacePrefix = list.getContent().get(0).getValue();
                String namespaceURI = list.getContent().get(1).getValue();

                ObjectNode map = json.objectNode();
                map.put("prefix", namespacePrefix);
                map.put("uri", namespaceURI);
                namespaceMap.add(map);
            }
        } finally {
            parserState.setCurrentConfiguration(null);
        }
        return configuration;
    }
}