add abstract renderer from doxia

git-svn-id: https://svn.apache.org/repos/asf/maven/components/trunk@163372 13f79535-47bb-0310-9956-ffa450edef68

maven-reporting-api/src/main/java/org/apache/maven/reporting/AbstractMavenReportRenderer.java

@@ -0,0 +1,184 @@
+package org.apache.maven.reporting;
+
+/*
+ * Copyright 2004-2005 The Apache Software Foundation.
+ *
+ * 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.
+ */
+
+import org.codehaus.doxia.sink.Sink;
+
+/**
+ * @author <a href="mailto:jason@maven.org">Jason van Zyl</a>
+ * @version $Id$
+ */
+public abstract class AbstractMavenReportRenderer
+{
+    protected Sink sink;
+
+    private int section = 0;
+
+    public AbstractMavenReportRenderer( Sink sink )
+    {
+        this.sink = sink;
+    }
+
+    public void render()
+    {
+        sink.head();
+
+        sink.title();
+
+        sink.text( getTitle() );
+
+        sink.title_();
+
+        sink.head_();
+
+        sink.body();
+
+        renderBody();
+
+        sink.body_();
+    }
+
+    protected void startTable()
+    {
+        sink.table();
+    }
+
+    protected void endTable()
+    {
+        sink.table_();
+    }
+
+    protected void startSection( String name )
+    {
+        section = section + 1;
+
+        switch ( section )
+        {
+            case 1:
+                sink.section1();
+                break;
+            case 2:
+                sink.section2();
+                break;
+            case 3:
+                sink.section3();
+                break;
+            case 4:
+                sink.section4();
+                break;
+            case 5:
+                sink.section5();
+                break;
+
+            default:
+                // TODO: warning - just don't start a section
+                break;
+        }
+
+        sink.sectionTitle();
+
+        sink.text( name );
+
+        sink.sectionTitle_();
+    }
+
+    protected void endSection()
+    {
+        switch ( section )
+        {
+            case 1:
+                sink.section1_();
+                break;
+            case 2:
+                sink.section2_();
+                break;
+            case 3:
+                sink.section3_();
+                break;
+            case 4:
+                sink.section4_();
+                break;
+            case 5:
+                sink.section5_();
+                break;
+
+            default:
+                // TODO: warning - just don't start a section
+                break;
+        }
+
+        section = section - 1;
+
+        if ( section < 0 )
+        {
+            throw new IllegalStateException( "Too many closing sections" );
+        }
+    }
+
+    protected void tableHeaderCell( String text )
+    {
+        sink.tableHeaderCell();
+
+        sink.text( text );
+
+        sink.tableHeaderCell_();
+    }
+
+    protected void tableCell( String text )
+    {
+        sink.tableCell();
+
+        sink.text( text );
+
+        sink.tableCell_();
+    }
+
+    protected void tableRow( String[] content )
+    {
+        sink.tableRow();
+
+        for ( int i = 0; i < content.length; i++ )
+        {
+            tableCell( content[i] );
+        }
+
+        sink.tableRow_();
+    }
+
+    protected void tableHeader( String[] content )
+    {
+        sink.tableRow();
+
+        for ( int i = 0; i < content.length; i++ )
+        {
+            tableHeaderCell( content[i] );
+        }
+
+        sink.tableRow_();
+    }
+
+    protected abstract String getTitle();
+
+    protected abstract void renderBody();
+
+    protected void tableCaption( String caption )
+    {
+        sink.tableCaption();
+        sink.text( caption );
+        sink.tableCaption_();
+    }
+}