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Diffstat (limited to 'sca-java-1.x/tags/1.6.2-RC1/demos/alert-aggregator-webapp/src/main/java/org/apache/tuscany/sca/demos/aggregator/RSSCheckerServiceImpl.java')
-rw-r--r-- | sca-java-1.x/tags/1.6.2-RC1/demos/alert-aggregator-webapp/src/main/java/org/apache/tuscany/sca/demos/aggregator/RSSCheckerServiceImpl.java | 91 |
1 files changed, 91 insertions, 0 deletions
diff --git a/sca-java-1.x/tags/1.6.2-RC1/demos/alert-aggregator-webapp/src/main/java/org/apache/tuscany/sca/demos/aggregator/RSSCheckerServiceImpl.java b/sca-java-1.x/tags/1.6.2-RC1/demos/alert-aggregator-webapp/src/main/java/org/apache/tuscany/sca/demos/aggregator/RSSCheckerServiceImpl.java new file mode 100644 index 0000000000..549abbf602 --- /dev/null +++ b/sca-java-1.x/tags/1.6.2-RC1/demos/alert-aggregator-webapp/src/main/java/org/apache/tuscany/sca/demos/aggregator/RSSCheckerServiceImpl.java @@ -0,0 +1,91 @@ +/* + * 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.net.URL; +import java.text.DateFormat; +import java.text.SimpleDateFormat; +import java.util.Date; +import java.util.List; + +import org.apache.tuscany.sca.demos.aggregator.types.AlertType; +import org.apache.tuscany.sca.demos.aggregator.types.AlertsType; +import org.apache.tuscany.sca.demos.aggregator.types.TypesFactory; + +import com.sun.syndication.feed.synd.SyndEntry; +import com.sun.syndication.feed.synd.SyndFeed; +import com.sun.syndication.io.SyndFeedInput; +import com.sun.syndication.io.XmlReader; + +/** + * The interface for the rss checker service + */ +public class RSSCheckerServiceImpl implements RSSCheckerService { + + public AlertsType getNewAlerts(String rssaddress, String lastchecktimestamp){ + // Create the list of alerts to return + TypesFactory factory = TypesFactory.INSTANCE; + AlertsType returnAlerts = factory.createAlertsType(); + List returnAlertList = returnAlerts.getAlert(); + + try { + // lastchecktimestamp comes from sources.xml configuration. + // That origin requires ISO 8601 date input (yyyy-MM-dd hh:mm:ss). + DateFormat configDateFormatter = new SimpleDateFormat( "yyyy-MM-dd hh:mm:ss"); + Date timestamp = configDateFormatter.parse(lastchecktimestamp); + // Turn feed dates into something we can process. + DateFormat feedDateFormatter = DateFormat.getDateTimeInstance(); + + // get the feed data from the supplied address + SyndFeedInput input = new SyndFeedInput(); + SyndFeed feed = input.build(new XmlReader(new URL(rssaddress))); + //System.out.println(feed); + + // check all the items to see if we have seen them before + List entries = feed.getEntries(); + for(Object entry: entries){ + SyndEntry syndEntry = (SyndEntry)entry; + + // System.err.println( "Entry pubdate=" + syndEntry.getPublishedDate() ); + if (syndEntry.getPublishedDate().after(timestamp)){ + AlertType newAlert = factory.createAlertType(); + + newAlert.setTitle(syndEntry.getTitle()); + // newAlert.setSummary("<![CDATA[" + + // syndEntry.getDescription().getValue() + + // "]]>"); + newAlert.setSummary(""); + newAlert.setAddress(syndEntry.getLink()); + newAlert.setDate(feedDateFormatter.format(syndEntry.getPublishedDate())); + newAlert.setId(rssaddress); + newAlert.setUnread(true); + + returnAlertList.add(newAlert); + } + } + + } catch(Exception ex) { + ex.printStackTrace( System.err ); + System.err.println("Exception " + ex.toString()); + } + + return returnAlerts; + } + +} |