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Java > Open Source Codes > org > jboss > deployers > plugins > structure > vfs > StructureDeployerWrapper


1 /*
2 * JBoss, Home of Professional Open Source
3 * Copyright 2006, JBoss Inc., and individual contributors as indicated
4 * by the @authors tag. See the copyright.txt in the distribution for a
5 * full listing of individual contributors.
6 *
7 * This is free software; you can redistribute it and/or modify it
8 * under the terms of the GNU Lesser General Public License as
9 * published by the Free Software Foundation; either version 2.1 of
10 * the License, or (at your option) any later version.
11 *
12 * This software is distributed in the hope that it will be useful,
13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
15 * Lesser General Public License for more details.
16 *
17 * You should have received a copy of the GNU Lesser General Public
18 * License along with this software; if not, write to the Free
19 * Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
20 * 02110-1301 USA, or see the FSF site: http://www.fsf.org.
21 */
22 package org.jboss.deployers.plugins.structure.vfs;
23
24 import org.jboss.deployers.spi.structure.DeploymentContext;
25 import org.jboss.deployers.spi.structure.vfs.StructureDeployer;
26 import org.jboss.deployers.spi.structure.vfs.StructureMetaData;
27 import org.jboss.deployers.spi.structure.vfs.StructuredDeployers;
28 import org.jboss.logging.Logger;
29 import org.jboss.virtual.VirtualFile;
30
31 /**
32  * StructureDeployerWrapper.
33  *
34  * To avoid any problems with error handling by the deployers.
35  *
36  * @author <a HREF="adrian@jboss.com">Adrian Brock</a>
37  * @version $Revision: 1.1 $
38  */
39 public class StructureDeployerWrapper implements StructureDeployer
40 {
41    /** The log */
42    private Logger log;
43    
44    /** The structure deployer */
45    private StructureDeployer deployer;
46
47    /**
48     * Create a new StructureDeployerWrapper.
49     *
50     * @param deployer the deployer
51     */
52    public StructureDeployerWrapper(StructureDeployer deployer)
53    {
54       if (deployer == null)
55          throw new IllegalArgumentException JavaDoc("Null deployer");
56       this.deployer = deployer;
57       log = Logger.getLogger(deployer.getClass());
58    }
59    
60    public boolean determineStructure(VirtualFile root,
61          StructureMetaData metaData, StructuredDeployers deployers)
62    {
63       if (root == null)
64          throw new IllegalArgumentException JavaDoc("Null root");
65       
66       try
67       {
68          boolean result = deployers.determineStructure(root, metaData);
69          if (log.isTraceEnabled())
70          {
71             if (result == false)
72                log.trace("Not recognised: " + root.getName());
73             else
74                log.trace("Recognised: " + root.getName());
75          }
76          return result;
77       }
78       catch (Throwable JavaDoc t)
79       {
80          log.warn("Error during determineStructure: " + root.getName(), t);
81          return false;
82       }
83    }
84    
85    public int getRelativeOrder()
86    {
87       return deployer.getRelativeOrder();
88    }
89    public void setRelativeOrder(int order)
90    {
91       deployer.setRelativeOrder(order);
92    }
93
94    @Override JavaDoc
95    public boolean equals(Object JavaDoc obj)
96    {
97       if (obj == this)
98          return true;
99       if (obj == null || obj instanceof StructureDeployer == false)
100          return false;
101       if (obj instanceof StructureDeployerWrapper)
102          obj = ((StructureDeployerWrapper) obj).deployer;
103       return deployer.equals(obj);
104    }
105    
106    @Override JavaDoc
107    public int hashCode()
108    {
109       return deployer.hashCode();
110    }
111    
112    @Override JavaDoc
113    public String JavaDoc toString()
114    {
115       return deployer.toString();
116    }
117 }
118
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