Author: bago
Date: Mon Apr 30 09:49:10 2007
New Revision: 533797
URL: http://svn.apache.org/viewvc?view=rev&rev=533797
Log:
First attempt to create a dnsjnio based asynchronous dns lookup service.
Currently it hardcoded the lookup to a local fake server "127.0.0.1" on a
random port.
This will be soon replaced by the new ExtendedNonBlockingResolver that is a
work-in-progress by Alex D. (dnsjnio author).
Added:
james/jspf/branches/asynch-jspf/src/main/java/org/apache/james/jspf/impl/DNSJnioAsynchService.java
Modified:
james/jspf/branches/asynch-jspf/stage/uk.nominet/jars/dnsjnio-0.9.7-SNAPSHOT.jar
Added:
james/jspf/branches/asynch-jspf/src/main/java/org/apache/james/jspf/impl/DNSJnioAsynchService.java
URL:
http://svn.apache.org/viewvc/james/jspf/branches/asynch-jspf/src/main/java/org/apache/james/jspf/impl/DNSJnioAsynchService.java?view=auto&rev=533797
==============================================================================
---
james/jspf/branches/asynch-jspf/src/main/java/org/apache/james/jspf/impl/DNSJnioAsynchService.java
(added)
+++
james/jspf/branches/asynch-jspf/src/main/java/org/apache/james/jspf/impl/DNSJnioAsynchService.java
Mon Apr 30 09:49:10 2007
@@ -0,0 +1,161 @@
+/****************************************************************
+ * 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.james.jspf.impl;
+
+import org.apache.james.jspf.core.DNSAsynchLookupService;
+import org.apache.james.jspf.core.DNSRequest;
+import org.apache.james.jspf.core.DNSService;
+import org.apache.james.jspf.core.IResponse;
+import org.apache.james.jspf.core.IResponseQueue;
+import org.xbill.DNS.DClass;
+import org.xbill.DNS.Message;
+import org.xbill.DNS.Name;
+import org.xbill.DNS.NonblockingResolver;
+import org.xbill.DNS.RRset;
+import org.xbill.DNS.Record;
+import org.xbill.DNS.Section;
+import org.xbill.DNS.TextParseException;
+import org.xbill.DNS.Type;
+
+import uk.nominet.dnsjnio.Response;
+import uk.nominet.dnsjnio.ResponseQueue;
+
+import java.net.UnknownHostException;
+import java.util.Iterator;
+import java.util.LinkedList;
+import java.util.List;
+
+public class DNSJnioAsynchService implements DNSAsynchLookupService {
+
+ private final class ResponseQueueAdaptor extends ResponseQueue {
+
+ private IResponseQueue responsePool;
+
+ public ResponseQueueAdaptor(IResponseQueue responsePool) {
+ this.responsePool = responsePool;
+ }
+
+ public void insert(final Response arg0) {
+ IResponse resp = new IResponse() {
+
+ public Exception getException() {
+ if (arg0.getException() != null) {
+ return new DNSService.TimeoutException();
+ } else {
+ return null;
+ }
+ }
+
+ public Object getId() {
+ return arg0.getId();
+ }
+
+ public Object getValue() {
+ Message response = arg0.getMessage();
+ RRset[] rrs = response.getSectionRRsets(Section.ANSWER);
+ List records = new LinkedList();
+ for (int i = 0; i < rrs.length; i++) {
+ for (Iterator it = rrs[i].rrs(); it.hasNext(); ) {
+ records.add(it.next());
+ }
+ }
+ return DNSServiceXBillImpl.convertRecordsToList((Record[])
records.toArray(new Record[]{}));
+
+ }
+
+ };
+ responsePool.insertResponse(resp);
+ }
+
+ public boolean isEmpty() {
+ return responsePool.isEmpty();
+ }
+
+ public Response getItem() {
+ IResponse found = responsePool.removeResponse();
+ Response resp = new Response();
+ if (found.getException() != null) {
+ resp.setException(true);
+ resp.setException(found.getException());
+ } else {
+ resp.setException(false);
+ resp.setMessage((Message) found.getValue());
+ }
+ resp.setId(found.getId());
+ return resp;
+ }
+
+
+ }
+
+ private NonblockingResolver resolver;
+
+ public DNSJnioAsynchService() {
+ try {
+ this.resolver = new NonblockingResolver("127.0.0.1");
+ this.resolver.setPort(35347);
+ this.resolver.setTCP(false);
+ } catch (UnknownHostException e) {
+ // TODO Auto-generated catch block
+ e.printStackTrace();
+ }
+ }
+
+ public void setTimeout(int timeout) {
+ this.resolver.setTimeout(timeout);
+ }
+
+ /**
+ * @see
org.apache.james.jspf.core.DNSAsynchLookupService#getRecordsAsynch(org.apache.james.jspf.core.DNSRequest,
java.lang.Object, org.apache.james.jspf.core.IResponseQueue)
+ */
+ public void getRecordsAsynch(DNSRequest request, int id,
+ IResponseQueue responsePool) {
+
+ Message message;
+ try {
+ message = makeQuery(request, id);
+ this.resolver.sendAsync(message, new Integer(id), new
ResponseQueueAdaptor(responsePool));
+ } catch (TextParseException e) {
+ // TODO Auto-generated catch block
+ e.printStackTrace();
+ }
+ }
+
+ private Message makeQuery(DNSRequest request, int id) throws
TextParseException {
+ Name name = Name.fromString(request.getHostname(), Name.root);
+
+ int type;
+ switch (request.getRecordType()) {
+ case DNSRequest.A: type = Type.A; break;
+ case DNSRequest.AAAA: type = Type.AAAA; break;
+ case DNSRequest.MX: type = Type.MX; break;
+ case DNSRequest.PTR: type = Type.PTR; break;
+ case DNSRequest.SPF: type = Type.SPF; break;
+ case DNSRequest.TXT: type = Type.TXT; break;
+ default:
+ throw new UnsupportedOperationException("Unknown query type:
"+request.getRecordType());
+ }
+
+ Record question = Record.newRecord(name, type, DClass.ANY);
+ Message query = Message.newQuery(question);
+ query.getHeader().setID(id);
+ return query;
+ }
+}
Modified:
james/jspf/branches/asynch-jspf/stage/uk.nominet/jars/dnsjnio-0.9.7-SNAPSHOT.jar
URL:
http://svn.apache.org/viewvc/james/jspf/branches/asynch-jspf/stage/uk.nominet/jars/dnsjnio-0.9.7-SNAPSHOT.jar?view=diff&rev=533797&r1=533796&r2=533797
==============================================================================
Binary files - no diff available.
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