package org.drools.eclipse.flow.ruleflow.core;

/*

 * Copyright 2005 JBoss Inc

 * 

 * 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.

 */



import java.util.HashMap;

import java.util.Map;



import org.drools.eclipse.flow.common.editor.core.ElementConnection;

import org.drools.eclipse.flow.common.editor.core.ElementWrapper;

import org.drools.eclipse.flow.ruleflow.view.property.subprocess.SubProcessParameterInMappingPropertyDescriptor;

import org.drools.eclipse.flow.ruleflow.view.property.subprocess.SubProcessParameterOutMappingPropertyDescriptor;

import org.drools.workflow.core.node.SubProcessNode;

import org.eclipse.ui.views.properties.ComboBoxPropertyDescriptor;

import org.eclipse.ui.views.properties.IPropertyDescriptor;

import org.eclipse.ui.views.properties.TextPropertyDescriptor;



/**

 * Wrapper for a SubFlow node.

 * 

 * @author <a href="mailto:kris_verlaenen@hotmail.com">Kris Verlaenen</a>

 */

public class SubProcessWrapper extends EventBasedNodeWrapper {



	private static final long serialVersionUID = 3668348577732020324L;

    

    public static final String PROCESS_ID = "ProcessId";

    public static final String WAIT_FOR_COMPLETION = "WaitForCompletion";

    public static final String INDEPENDENT = "Independent";

    public static final String PARAMETER_IN_MAPPING = "ParameterInMapping";

    public static final String PARAMETER_OUT_MAPPING = "ParameterOutMapping";



    public SubProcessWrapper() {

        setNode(new SubProcessNode());

        getSubProcessNode().setName("SubProcess");

    }

    

	protected void initDescriptors() {

    	super.initDescriptors();

    	IPropertyDescriptor[] oldDescriptors = descriptors; 

        descriptors = new IPropertyDescriptor[oldDescriptors.length + 7];

        System.arraycopy(oldDescriptors, 0, descriptors, 0, oldDescriptors.length);

        descriptors[descriptors.length - 7] = getOnEntryPropertyDescriptor();

        descriptors[descriptors.length - 6] = getOnExitPropertyDescriptor();

        descriptors[descriptors.length - 5] = 

            new SubProcessParameterInMappingPropertyDescriptor(PARAMETER_IN_MAPPING, "Parameter In Mapping", getSubProcessNode());

        descriptors[descriptors.length - 4] = 

            new SubProcessParameterOutMappingPropertyDescriptor(PARAMETER_OUT_MAPPING, "Parameter Out Mapping", getSubProcessNode());

        descriptors[descriptors.length - 3] = 

            new ComboBoxPropertyDescriptor(INDEPENDENT, "Independent", new String[] {"true", "false"});

        descriptors[descriptors.length - 2] = 

        	new TextPropertyDescriptor(PROCESS_ID, "ProcessId");

        descriptors[descriptors.length - 1] = 

            new ComboBoxPropertyDescriptor(WAIT_FOR_COMPLETION, "Wait for completion", new String[] {"true", "false"});

    }

    

    public SubProcessNode getSubProcessNode() {

        return (SubProcessNode) getNode();

    }

    

    public boolean acceptsIncomingConnection(ElementConnection connection, ElementWrapper source) {

        return super.acceptsIncomingConnection(connection, source)

        	&& getIncomingConnections().isEmpty();

    }



    public boolean acceptsOutgoingConnection(ElementConnection connection, ElementWrapper target) {

        return super.acceptsOutgoingConnection(connection, target)

        	&& getOutgoingConnections().isEmpty();

    }

    

    public Object getPropertyValue(Object id) {

        if (PROCESS_ID.equals(id)) {

        	String processId = getSubProcessNode().getProcessId();

            return processId == null ? "" : processId;

        }

        if (WAIT_FOR_COMPLETION.equals(id)) {

            return getSubProcessNode().isWaitForCompletion() ? new Integer(0) : new Integer(1);

        }

        if (INDEPENDENT.equals(id)) {

            return getSubProcessNode().isIndependent() ? new Integer(0) : new Integer(1);

        }

        if (PARAMETER_IN_MAPPING.equals(id)) {

            return getSubProcessNode().getInMappings();

        } 

        if (PARAMETER_OUT_MAPPING.equals(id)) {

            return getSubProcessNode().getOutMappings();

        } 

        return super.getPropertyValue(id);

    }



    public void resetPropertyValue(Object id) {

        if (PROCESS_ID.equals(id)) {

        	getSubProcessNode().setProcessId("");

        } else if (WAIT_FOR_COMPLETION.equals(id)) {

            getSubProcessNode().setWaitForCompletion(true);

        } else if (INDEPENDENT.equals(id)) {

            getSubProcessNode().setIndependent(true);

        } else if (PARAMETER_IN_MAPPING.equals(id)) {

            getSubProcessNode().setInMappings(new HashMap<String, String>());

        } else if (PARAMETER_OUT_MAPPING.equals(id)) {

            getSubProcessNode().setOutMappings(new HashMap<String, String>());

        } else {

            super.resetPropertyValue(id);

        }

    }



    @SuppressWarnings("unchecked")

	public void setPropertyValue(Object id, Object value) {

        if (PROCESS_ID.equals(id)) {

        	getSubProcessNode().setProcessId((String) value);

        } else if (WAIT_FOR_COMPLETION.equals(id)) {

            getSubProcessNode().setWaitForCompletion(((Integer) value).intValue() == 0);

        } else if (INDEPENDENT.equals(id)) {

            getSubProcessNode().setIndependent(((Integer) value).intValue() == 0);

        } else if (PARAMETER_IN_MAPPING.equals(id)) {

            getSubProcessNode().setInMappings((Map<String, String>) value);

        } else if (PARAMETER_OUT_MAPPING.equals(id)) {

            getSubProcessNode().setOutMappings((Map<String, String>) value);

        } else {

            super.setPropertyValue(id, value);

        }

    }

}