org.jbpm.bpmn2.xml.ImportHandler Maven / Gradle / Ivy

Go to download
Show more of this group Show more artifacts with this name
Show all versions of jbpm-bpmn2 Show documentation
jBPM BPMN2
There is a newer version: 10.0.0
/*
 * Copyright 2010 Red Hat, Inc. and/or its affiliates.
 *
 * 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.jbpm.bpmn2.xml;

import java.util.HashMap;
import java.util.HashSet;
import java.util.Map;

import org.jbpm.compiler.xml.Handler;
import org.jbpm.compiler.xml.Parser;
import org.jbpm.compiler.xml.core.BaseAbstractHandler;
import org.jbpm.workflow.core.impl.WorkflowProcessImpl;
import org.kie.api.definition.process.Process;
import org.xml.sax.Attributes;
import org.xml.sax.SAXException;

public class ImportHandler extends BaseAbstractHandler implements Handler {

    public ImportHandler() {
        if ((this.validParents == null) && (this.validPeers == null)) {
            this.validParents = new HashSet();
            this.validParents.add(Process.class);

            this.validPeers = new HashSet();
            this.validPeers.add(null);

            this.allowNesting = false;
        }
    }

    public Object start(final String uri, final String localName,
            final Attributes attrs, final Parser parser)
            throws SAXException {
        parser.startElementBuilder(localName, attrs);
        WorkflowProcessImpl process = (WorkflowProcessImpl) parser.getParent();

        final String name = attrs.getValue("name");
        final String type = attrs.getValue("importType");
        final String location = attrs.getValue("location");
        final String namespace = attrs.getValue("namespace");
        emptyAttributeCheck(localName, "name", name, parser);

        if (type != null && location != null && namespace != null) {
            Map typedImports = (Map) process.getMetaData(type);
            if (typedImports == null) {
                typedImports = new HashMap<>();
                process.setMetaData(type, typedImports);
            }
            typedImports.put(namespace, location);
        } else {

            java.util.Set list = process.getImports();
            if (list == null) {
                list = new HashSet<>();
                process.setImports(list);
            }
            list.add(name);
        }
        return null;
    }

    public Object end(final String uri, final String localName,
            final Parser parser) throws SAXException {
        parser.endElementBuilder();
        return null;
    }

    public Class generateNodeFor() {
        return null;
    }

}