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/*
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you 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.apache.tuscany.sca.demos.aggregator;
import java.io.InputStream;
import java.text.DateFormat;
import java.util.Date;
import org.apache.tuscany.sca.demos.aggregator.types.ConfigType;
import org.apache.tuscany.sca.demos.aggregator.types.SourceType;
import org.apache.tuscany.sca.demos.aggregator.types.TypesFactory;
import org.apache.tuscany.sca.demos.aggregator.types.impl.SourceTypeImpl;
import org.osoa.sca.annotations.Scope;
import org.osoa.sca.annotations.Service;
import commonj.sdo.helper.HelperContext;
import commonj.sdo.helper.XMLDocument;
import commonj.sdo.impl.HelperProvider;
/**
* Retrieve and manage alert sources
*
* @version $Rev$ $Date$
*/
@Service(AlertsSourcesService.class)
@Scope("COMPOSITE")
public class AlertsSourcesServiceImpl implements AlertsSourcesService {
ConfigType alertSources;
/**
* Constructor reads the configuration to provide
* the initial list of alert sources
*/
public AlertsSourcesServiceImpl(){
System.err.println("AlertsSourcesServiceImpl()");
try {
// read the alerts config from an XML file
InputStream is = this.getClass().getClassLoader().getResourceAsStream("sources.xml");
if (is == null) {
throw new Exception("Can;t find sources.xml");
} else {
HelperContext helperContext = HelperProvider.getDefaultContext();
TypesFactory.INSTANCE.register(helperContext);
XMLDocument xmlDoc = helperContext.getXMLHelper().load(is);
alertSources = (ConfigType)xmlDoc.getRootObject();
}
} catch (Exception ex) {
System.err.println("Exception " + ex.toString());
}
}
/**
* Return all of the configured alert sources.
*
* @return the list of alert sources
*/
public ConfigType getAlertSources (String id)
{
System.err.println("getAlertSources(" + id + ")");
// convert alert sources to POJOs so that
// the JSONRPC binding will work
ConfigTypeNonSDOImpl sources = new ConfigTypeNonSDOImpl();
for (Object source : alertSources.getSource()) {
SourceTypeNonSDOImpl newSource = new SourceTypeNonSDOImpl();
newSource.setAddress(((SourceTypeImpl)source).getAddress());
newSource.setFeedAddress(((SourceTypeImpl)source).getFeedAddress());
newSource.setId(((SourceTypeImpl)source).getId());
newSource.setLastChecked(((SourceTypeImpl)source).getLastChecked());
newSource.setName(((SourceTypeImpl)source).getName());
newSource.setFeedType(((SourceTypeImpl)source).getFeedType());
sources.getSource().add(newSource);
}
return sources;
}
/**
* Return a single alert source.
* @param id the alert source id number
* @return the alert source
*/
public SourceType getAlertSource (String id)
{
System.err.println("getAlertSource(" + id + ")");
SourceType alertSource = null;
for (Object source : alertSources.getSource()) {
if ( ((SourceType)source).getId().equals(id)) {
alertSource = (SourceType)source;
}
}
return alertSource;
}
/**
* Update an alert source.
*
* @param updatedSource the alert source to update
*/
public void updateAlertSource (SourceType updatedSource)
{
System.err.println("updateAlertSource()");
Object originalSource = null;
for (Object source : alertSources.getSource()) {
if ( ((SourceType)source).getId().equals(updatedSource.getId())) {
originalSource = source;
break;
}
}
if (originalSource != null){
alertSources.getSource().add(updatedSource);
alertSources.getSource().remove(originalSource);
}
}
/**
* Add an alert source.
*
* @param newSource the alert source to add
*/
public String addAlertSource (SourceType newSource)
{
System.err.println("addAlertSource()");
// set the date to now less 2 hours so we
// get some alerts straight away
DateFormat dateFormatter = DateFormat.getDateTimeInstance();
Date now = new Date();
now.setHours(now.getHours()-2);
String nowString = dateFormatter.format(now);
newSource.setLastChecked(nowString);
alertSources.getSource().add(newSource);
return "Done";
}
/**
* Remove an alert source.
*
* @param oldSource the alert source to remove
*/
public void removeAlertSource (String id)
{
System.err.println("removeAlertSource()");
Object originalSource = null;
for (Object source : alertSources.getSource()) {
if ( ((SourceType)source).getId().equals(id)) {
originalSource = source;
break;
}
}
if (originalSource != null) {
alertSources.getSource().remove(originalSource);
}
}
}
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