[seam-issues] [JBoss JIRA] Created: (SEAMFORGE-26) Facets & Plugins need a way of determining the most current available version of a dependency

[Lincoln Baxter III (JIRA)]

Facets & Plugins need a way of determining the most current available version of a dependency
---------------------------------------------------------------------------------------------

                 Key: SEAMFORGE-26
                 URL: https://issues.jboss.org/browse/SEAMFORGE-26
             Project: Seam Forge
          Issue Type: Feature Request
          Components: Plugin API
    Affects Versions: 1.0.0.Alpha1
            Reporter: Lincoln Baxter III
             Fix For: 1.0.0.Alpha2


Right now, there is no good way of inspecting Dependency repositories for available versions of a given artifact. For example: 

=================================================
public class DataProcessor
{
   @Inject
   private HttpClient client;
   
   /**
    * @param client the client to set
    */
   void setClient(HttpClient client)
   {
      this.client = client;
   }
   
   public <T> T process(URL url, final ContentHandler<T> handler)
   {
      HttpGet get = new HttpGet(url.toExternalForm());
      try
      {
         return client.execute(get, new ResponseHandler<T>()
         {
            @Override
            public T handleResponse(HttpResponse response) throws ClientProtocolException, IOException
            {
                StringBuilder content = new StringBuilder();
                BufferedReader in = new BufferedReader(new InputStreamReader(response.getEntity().getContent()));
                String line;
                while( (line = in.readLine()) != null)
                {
                    content.append(line);
                }
                in.close();
                return handler.proces(content.toString());
            }
         });
      }
      catch (Exception e)
      {
         throw new RuntimeException(e);
      }
   }
   
   
   public interface ContentHandler<T> 
   {
      T proces(String content);
   }
}


/*
 * JBoss, Home of Professional Open Source
 * Copyright 2010, Red Hat Middleware LLC, and individual contributors
 * by the @authors tag. See the copyright.txt in the distribution for a
 * full listing of individual 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.jboss.seam.forge.arquillian.util;

import javax.enterprise.context.Dependent;
import javax.enterprise.inject.Disposes;
import javax.enterprise.inject.Produces;

import org.apache.http.client.HttpClient;
import org.apache.http.impl.client.DefaultHttpClient;

/**
 * HttpClientProducer
 *
 * @author <a href="mailto:aslak at redhat.com">Aslak Knutsen</a>
 * @version $Revision: $
 */
public class HttpClientProducer
{
   @Produces @Dependent
   public HttpClient createClient()
   {
      return new DefaultHttpClient();
   }
   
   public void destroyClient(@Disposes HttpClient client)
   {
      
   }
}


/*
 * JBoss, Home of Professional Open Source
 * Copyright 2010, Red Hat Middleware LLC, and individual contributors
 * by the @authors tag. See the copyright.txt in the distribution for a
 * full listing of individual 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.jboss.seam.forge.arquillian.util;

import java.net.URL;
import java.util.List;

import javax.enterprise.context.ApplicationScoped;
import javax.enterprise.inject.Produces;
import javax.inject.Inject;

/**
 * VersionsProducer
 *
 * @author <a href="mailto:aslak at redhat.com">Aslak Knutsen</a>
 * @version $Revision: $
 */
public class VersionsProducer
{
   @Inject 
   private DataProcessor processor;
   
   @Produces @ApplicationScoped
   public List<String> fetchVersions() throws Exception
   {
      return processor.process(
            new URL("http://repository.jboss.org/nexus/content/groups/public/org/jboss/arquillian/arquillian-api/"), 
            new ExtractVersionNumber());
   }
}


/*
 * JBoss, Home of Professional Open Source
 * Copyright 2010, Red Hat Middleware LLC, and individual contributors
 * by the @authors tag. See the copyright.txt in the distribution for a
 * full listing of individual 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.jboss.seam.forge.arquillian.util;

import java.util.ArrayList;
import java.util.List;
import java.util.regex.Matcher;
import java.util.regex.Pattern;

/**
 * ExtractVersionNumber
 *
 * @author <a href="mailto:aslak at redhat.com">Aslak Knutsen</a>
 * @version $Revision: $
 */
public class ExtractVersionNumber implements DataProcessor.ContentHandler<List<String>>
{
   /* (non-Javadoc)
    * @see org.jboss.seam.forge.arquillian.util.DataProcessor.ContentHandler#proces(java.lang.String)
    */
   @Override
   public List<String> proces(String content)
   {
      List<String> versions = new ArrayList<String>();
      try
      {
         Pattern pattern = Pattern.compile("<a\\b[^>]*href=\"[^>]*>(.*?)/</a>");
         Matcher matcher = pattern.matcher(content);
         int mIdx = 0;
         while (matcher.find())
         {
            mIdx++;
            if(mIdx == 1)
            {
               continue;
            }
            String rawVersion = matcher.group(1);
            if(include(rawVersion))
            {
               versions.add(rawVersion);               
            }
         }
      }
      catch (Exception e)
      {
         throw new RuntimeException("Could not extract version numbers", e);
      }

      return versions;
   }

   /**
    * @param rawVersion
    * @return
    */
   private boolean include(String rawVersion)
   {
      return !rawVersion.matches(".*(SP1|SP2|SP3|OSGi).*");
   }
}

-- 
This message is automatically generated by JIRA.
-
For more information on JIRA, see: http://www.atlassian.com/software/jira