/*
* Copyright 2013 Red Hat Inc. and/or its affiliates and other contributors.
*
* 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.switchyard.internal;
import java.util.HashMap;
import java.util.HashSet;
import java.util.Map;
import java.util.Map.Entry;
import java.util.Set;
import org.switchyard.Context;
import org.switchyard.Property;
import org.switchyard.Scope;
import org.switchyard.serial.graph.AccessType;
import org.switchyard.serial.graph.Strategy;
/**
* Composite context holds multiple scopes mapped to context instances.
*/
@Strategy(access=AccessType.FIELD)
public class CompositeContext implements Context {
private Map<Scope, Context> _contexts = new HashMap<Scope, Context>();
/**
* Create a new composite context with empty EXCHANGE and MESSAGE contexts.
*/
public CompositeContext() {
_contexts.put(Scope.EXCHANGE, new DefaultContext(Scope.EXCHANGE));
_contexts.put(Scope.MESSAGE, new DefaultContext(Scope.MESSAGE));
}
/**
* Attach given context to specified scope.
*
* @param scope Scope of context.
* @param context Context instance.
*/
public void setContext(Scope scope, Context context) {
_contexts.put(scope, context);
}
@Override
public void mergeInto(Context context) {
for (Entry<Scope, Context> entry : _contexts.entrySet()) {
entry.getValue().mergeInto(context);
}
}
@Override
public Property getProperty(String name) {
Property property = getProperty(name, Scope.MESSAGE);
return property == null ? getProperty(name, Scope.EXCHANGE) : property;
}
@Override
public Property getProperty(String name, Scope scope) {
if (!_contexts.containsKey(scope)) {
return null;
}
return _contexts.get(scope).getProperty(name);
}
@Override
@SuppressWarnings("unchecked")
public <T> T getPropertyValue(String name) {
Property property = getProperty(name);
return property == null ? null : (T) property.getValue();
}
@Override
public Set<Property> getProperties() {
HashSet<Property> properties = new HashSet<Property>();
for (Context ctx : _contexts.values()) {
properties.addAll(ctx.getProperties());
}
return properties;
}
@Override
public Set<Property> getProperties(Scope scope) {
if (_contexts.containsKey(scope)) {
return _contexts.get(scope).getProperties();
}
return null;
}
@Override
public Set<Property> getProperties(String label) {
HashSet<Property> properties = new HashSet<Property>();
for (Context ctx : _contexts.values()) {
properties.addAll(ctx.getProperties(label));
}
return properties;
}
@Override
public void removeProperty(Property property) {
for (Entry<Scope, Context> entry : _contexts.entrySet()) {
if (entry.getKey() == property.getScope()) {
entry.getValue().removeProperty(property);
}
}
}
@Override
public void removeProperties() {
for (Context ctx : _contexts.values()) {
ctx.removeProperties();
}
}
@Override
public void removeProperties(Scope scope) {
if (_contexts.containsKey(scope)) {
_contexts.get(scope).removeProperties();
}
}
@Override
public void removeProperties(String label) {
for (Context ctx : _contexts.values()) {
ctx.removeProperties(label);
}
}
@Override
public Property setProperty(String name, Object val) {
return setProperty(name, val, Scope.MESSAGE);
}
@Override
public Property setProperty(String name, Object val, Scope scope) {
if (_contexts.containsKey(scope)) {
return _contexts.get(scope).setProperty(name, val);
}
throw new IllegalArgumentException(scope.name());
}
@Override
public Context setProperties(Set<Property> properties) {
for (Property property : properties) {
setProperty(property.getName(), property.getValue(), property.getScope());
}
return this;
}
}