/*
* 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.
*/
package org.drools.eclipse.flow.common.editor.core;
import java.io.IOException;
import java.io.ObjectInputStream;
import java.io.Serializable;
import java.util.ArrayList;
import java.util.Collections;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
import org.drools.eclipse.flow.common.view.property.ListPropertyDescriptor;
import org.drools.eclipse.flow.ruleflow.view.property.exceptionHandler.ExceptionHandlersPropertyDescriptor;
import org.drools.eclipse.flow.ruleflow.view.property.swimlane.SwimlanesCellEditor;
import org.drools.eclipse.flow.ruleflow.view.property.variable.VariableListCellEditor;
import org.eclipse.ui.views.properties.ComboBoxPropertyDescriptor;
import org.eclipse.ui.views.properties.IPropertyDescriptor;
import org.eclipse.ui.views.properties.IPropertySource;
import org.eclipse.ui.views.properties.TextPropertyDescriptor;
import org.jbpm.process.core.context.exception.ExceptionHandler;
import org.jbpm.process.core.context.exception.ExceptionScope;
import org.jbpm.process.core.context.swimlane.Swimlane;
import org.jbpm.process.core.context.swimlane.SwimlaneContext;
import org.jbpm.process.core.context.variable.Variable;
import org.jbpm.process.core.context.variable.VariableScope;
import org.kie.definition.process.Process;
/**
* A wrapper for process element.
*/
public abstract class ProcessWrapper implements ElementContainer, IPropertySource, Serializable {
private static final long serialVersionUID = 510l;
public static final int CHANGE_ELEMENTS = 1;
public static final int CHANGE_ROUTER_LAYOUT = 2;
public static final Integer ROUTER_LAYOUT_MANUAL = new Integer(0);
public static final Integer ROUTER_LAYOUT_MANHATTAN = new Integer(1);
public static final Integer ROUTER_LAYOUT_SHORTEST_PATH = new Integer(2);
public static final String NAME = "name";
public static final String VERSION = "version";
public static final String ID = "id";
public static final String PACKAGE_NAME = "packageName";
public static final String ROUTER_LAYOUT = "routerLayout";
public static final String VARIABLES = "variables";
public static final String SWIMLANES = "swimlanes";
public static final String EXCEPTION_HANDLERS = "exceptionHandlers";
private org.jbpm.process.core.Process process;
private Map<String, ElementWrapper> elements = new HashMap<String, ElementWrapper>();
private transient List<ModelListener> listeners = new ArrayList<ModelListener>();
protected IPropertyDescriptor[] descriptors;
public ProcessWrapper() {
process = (org.jbpm.process.core.Process) createProcess();
}
protected abstract Process createProcess();
public Process getProcess() {
return process;
}
public void localSetProcess(Process process) {
this.process = (org.jbpm.process.core.Process) process;
}
public String getName() {
return process.getName() == null ? "" : process.getName();
}
public void setName(String name) {
process.setName(name);
}
public String getVersion() {
return process.getVersion() == null ? "" : process.getVersion();
}
public void setVersion(String version) {
process.setVersion(version);
}
public String getId() {
return process.getId();
}
public void setId(String id) {
process.setId(id);
}
public String getPackageName() {
return process.getPackageName() == null ? "" : process.getPackageName();
}
public void setPackageName(String packageName) {
process.setPackageName(packageName);
}
public Integer getRouterLayout() {
Integer routerLayout = (Integer) process.getMetaData().get("routerLayout");
if (routerLayout == null) {
return ROUTER_LAYOUT_MANUAL;
}
return routerLayout;
}
public void setRouterLayout(Integer routerLayout) {
process.setMetaData("routerLayout", routerLayout);
notifyListeners(CHANGE_ROUTER_LAYOUT);
}
public List<ElementWrapper> getElements() {
return Collections.unmodifiableList(
new ArrayList<ElementWrapper>(elements.values()));
}
public ElementWrapper getElement(String id) {
return (ElementWrapper) elements.get(id);
}
public void addElement(ElementWrapper element) {
internalAddElement(element);
//id is set in methode above
localAddElement(element);
notifyListeners(CHANGE_ELEMENTS);
}
public void localAddElement(ElementWrapper element) {
elements.put(element.getId(), element);
}
protected abstract void internalAddElement(ElementWrapper element);
public void removeElement(ElementWrapper element) {
elements.remove(element.getId());
notifyListeners(CHANGE_ELEMENTS);
internalRemoveElement(element);
}
protected abstract void internalRemoveElement(ElementWrapper element);
public ProcessWrapper getProcessWrapper() {
return this;
}
public void addListener(ModelListener listener) {
listeners.add(listener);
}
public void removeListener(ModelListener listener) {
listeners.remove(listener);
}
public void notifyListeners(int change) {
ModelEvent event = new ModelEvent(change);
for (ModelListener listener: listeners) {
listener.modelChanged(event);
}
}
private void readObject(ObjectInputStream aInputStream) throws ClassNotFoundException, IOException {
aInputStream.defaultReadObject();
listeners = new ArrayList<ModelListener>();
}
public Object getEditableValue() {
return this;
}
public IPropertyDescriptor[] getPropertyDescriptors() {
if (descriptors == null) {
initPropertyDescriptors();
}
return descriptors;
}
public void initPropertyDescriptors() {
if (isFullProperties()) {
descriptors = new IPropertyDescriptor[] {
new TextPropertyDescriptor(NAME, "Name"),
new TextPropertyDescriptor(VERSION, "Version"),
new TextPropertyDescriptor(ID, "Id"),
new TextPropertyDescriptor(PACKAGE_NAME, "Package"),
new ComboBoxPropertyDescriptor(ROUTER_LAYOUT, "Connection Layout",
new String[] { "Manual", "Manhattan", "Shortest Path" }),
new ListPropertyDescriptor(VARIABLES, "Variables", VariableListCellEditor.class),
new ListPropertyDescriptor(SWIMLANES, "Swimlanes",
SwimlanesCellEditor.class),
new ExceptionHandlersPropertyDescriptor(EXCEPTION_HANDLERS,
"Exception Handlers", process),
};
} else {
descriptors = new IPropertyDescriptor[] {
new TextPropertyDescriptor(NAME, "Name"),
new TextPropertyDescriptor(VERSION, "Version"),
new TextPropertyDescriptor(ID, "Id"),
new TextPropertyDescriptor(PACKAGE_NAME, "Package"),
new ListPropertyDescriptor(VARIABLES, "Variables", VariableListCellEditor.class),
new ListPropertyDescriptor(SWIMLANES, "Swimlanes",
SwimlanesCellEditor.class),
};
}
}
public boolean isFullProperties() {
return true;
}
public Object getPropertyValue(Object id) {
if (NAME.equals(id)) {
return getName();
}
if (VERSION.equals(id)) {
return getVersion();
}
if (ID.equals(id)) {
return getId() + "";
}
if (PACKAGE_NAME.equals(id)) {
return getPackageName();
}
if (ROUTER_LAYOUT.equals(id)) {
return getRouterLayout();
}
if (VARIABLES.equals(id)) {
return ((VariableScope) process.getDefaultContext(VariableScope.VARIABLE_SCOPE)).getVariables();
}
if (SWIMLANES.equals(id)) {
return ((SwimlaneContext) process.getDefaultContext(SwimlaneContext.SWIMLANE_SCOPE)).getSwimlanes();
}
if (EXCEPTION_HANDLERS.equals(id)) {
return ((ExceptionScope) process.getDefaultContext(ExceptionScope.EXCEPTION_SCOPE)).getExceptionHandlers();
}
return null;
}
public boolean isPropertySet(Object id) {
return true;
}
public void resetPropertyValue(Object id) {
if (NAME.equals(id)) {
setName("");
}
if (VERSION.equals(id)) {
setVersion("");
}
if (ID.equals(id)) {
setId("");
}
if (PACKAGE_NAME.equals(id)) {
setPackageName("");
}
if (ROUTER_LAYOUT.equals(id)) {
setRouterLayout(null);
}
if (VARIABLES.equals(id)) {
((VariableScope) process.getDefaultContext(
VariableScope.VARIABLE_SCOPE)).setVariables(new ArrayList<Variable>());
}
if (SWIMLANES.equals(id)) {
((SwimlaneContext) process.getDefaultContext(
SwimlaneContext.SWIMLANE_SCOPE)).setSwimlanes(new ArrayList<Swimlane>());
}
if (EXCEPTION_HANDLERS.equals(id)) {
((ExceptionScope) process.getDefaultContext(
ExceptionScope.EXCEPTION_SCOPE)).setExceptionHandlers(new HashMap<String, ExceptionHandler>());
}
}
@SuppressWarnings("unchecked")
public void setPropertyValue(Object id, Object value) {
if (NAME.equals(id)) {
setName((String) value);
} else if (VERSION.equals(id)) {
setVersion((String) value);
} else if (ID.equals(id)) {
setId((String) value);
} else if (PACKAGE_NAME.equals(id)) {
setPackageName((String) value);
} else if (ROUTER_LAYOUT.equals(id)) {
setRouterLayout((Integer) value);
} else if (VARIABLES.equals(id)) {
((VariableScope) process.getDefaultContext(
VariableScope.VARIABLE_SCOPE)).setVariables((List<Variable>) value);
} else if (SWIMLANES.equals(id)) {
((SwimlaneContext) process.getDefaultContext(
SwimlaneContext.SWIMLANE_SCOPE)).setSwimlanes((List<Swimlane>) value);
} else if (EXCEPTION_HANDLERS.equals(id)) {
((ExceptionScope) process.getDefaultContext(
ExceptionScope.EXCEPTION_SCOPE)).setExceptionHandlers((Map<String, ExceptionHandler>) value);
}
}
public boolean canAddElement(ElementWrapper element) {
return true;
}
}