taskparameterspropertysource.java

一个java写的business process management系统

/*
 * Copyright (c) 2003-2004, Alexander Greif
 * All rights reserved.
 * 
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions are met:
 * 
 *     * Redistributions of source code must retain the above copyright
 *       notice, this list of conditions and the following disclaimer.
 *     * Redistributions in binary form must reproduce the above copyright
 *       notice, this list of conditions and the following disclaimer in the
 *       documentation and/or other materials provided with the distribution.
 *     * Neither the name of the Flow4J-Eclipse project nor the names of its
 *       contributors may be used to endorse or promote products derived from
 *       this software without specific prior written permission.
 * 
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
 * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
 * THE POSSIBILITY OF SUCH DAMAGE.
 */

package net.orthanc.flow4j.designer.model.propertysources;

import java.util.ArrayList;
import java.util.Iterator;
import java.util.List;

import net.orthanc.flow4j.runtime.descriptors.TaskParameterDescriptor;
import net.orthanc.flow4j.runtime.descriptors.TaskParameterDescriptors;

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

/**
 * Class TaskParametersPropertySource TODO
 * @author agreif
 * 
 */
public class TaskParametersPropertySource implements IPropertySource {

	private static final String PROP_TASK_PARAMETER_PREFIX = "task_parameter_"; //$NON-NLS-1$

	private TaskParameterDescriptors taskParameterDescriptors;
	private String type;

	/**
	 * Constructor.
	 * @param type
	 * @param taskParameterDescriptors
	 */
	public TaskParametersPropertySource(
		String type,
		TaskParameterDescriptors taskParameterDescriptors) {
		this.type = type;
		this.taskParameterDescriptors = taskParameterDescriptors;
	}

	private String getPropPrefix() {
		return PROP_TASK_PARAMETER_PREFIX + type + "_";
	}

	/**
	 * @see org.eclipse.ui.views.properties.IPropertySource#getEditableValue()
	 */
	public Object getEditableValue() {
		return this;
	}

	/**
	 * TODO
	 * @see org.eclipse.ui.views.properties.IPropertySource#getPropertyDescriptors()
	 */
	public IPropertyDescriptor[] getPropertyDescriptors() {
		List tempPropDescs = new ArrayList();
		if (taskParameterDescriptors != null) {
			for (Iterator iter = taskParameterDescriptors.iterator();
				iter.hasNext();
				) {
				TaskParameterDescriptor desc =
					(TaskParameterDescriptor) iter.next();
				PropertyDescriptor propDesc =
					new PropertyDescriptor(
						getPropPrefix() + desc.getName(),
						desc.getName());
				tempPropDescs.add(propDesc);
			}
		}

		return (
			IPropertyDescriptor[]) tempPropDescs
				.toArray(new IPropertyDescriptor[] {
		});
	}

	private TaskParameterDescriptor getTaskFlowletParameterDescriptor(String paramName)
		throws ClassNotFoundException {
		if (taskParameterDescriptors != null) {
			for (Iterator iter = taskParameterDescriptors.iterator();
				iter.hasNext();
				) {
				TaskParameterDescriptor paramDesc =
					(TaskParameterDescriptor) iter.next();
				if (paramName.equals(paramDesc.getName()))
					return paramDesc;
			}
		}
		return null;
	}

	/* 
	 * TODO
	 * @see org.eclipse.ui.views.properties.IPropertySource#getPropertyValue(java.lang.Object)
	 */
	public Object getPropertyValue(Object id) {
		try {
			String propName = ((String) id).substring(getPropPrefix().length());
			TaskParameterDescriptor paramDesc =
				getTaskFlowletParameterDescriptor(propName);
			if (paramDesc != null)
				return new TaskParameterPropertySource(paramDesc);
		} catch (ClassNotFoundException e) {
		}
		return "N/A";
	}

	/* 
	 * TODO
	 * @see org.eclipse.ui.views.properties.IPropertySource#isPropertySet(java.lang.Object)
	 */
	public boolean isPropertySet(Object id) {
		// TODO Auto-generated method stub
		return false;
	}

	/* 
	 * TODO
	 * @see org.eclipse.ui.views.properties.IPropertySource#resetPropertyValue(java.lang.Object)
	 */
	public void resetPropertyValue(Object id) {
		// TODO Auto-generated method stub

	}

	/* 
	 * TODO
	 * @see org.eclipse.ui.views.properties.IPropertySource#setPropertyValue(java.lang.Object, java.lang.Object)
	 */
	public void setPropertyValue(Object id, Object value) {
		// TODO Auto-generated method stub
	}

	/**
	 * @see java.lang.Object#toString()
	 */
	public String toString() {
		StringBuffer buf = new StringBuffer(); //$NON-NLS-1$
		if (taskParameterDescriptors == null)
			buf.append("[none]"); //$NON-NLS-1$
		else {
			buf.append("["); //$NON-NLS-1$
			for (Iterator iter = taskParameterDescriptors.iterator();
				iter.hasNext();
				) {
				TaskParameterDescriptor propDesc =
					(TaskParameterDescriptor) iter.next();
				buf.append(propDesc.getName());
				if (iter.hasNext())
					buf.append(", "); //$NON-NLS-1$
			}
			buf.append("]"); //$NON-NLS-1$
		}

		return buf.toString();
	}

}