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/*
 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER.
 *
 * Copyright (c) 1997-2010 Oracle and/or its affiliates. All rights reserved.
 *
 * The contents of this file are subject to the terms of either the GNU
 * General Public License Version 2 only ("GPL") or the Common Development
 * and Distribution License("CDDL") (collectively, the "License").  You
 * may not use this file except in compliance with the License.  You can
 * obtain a copy of the License at
 * https://glassfish.dev.java.net/public/CDDL+GPL_1_1.html
 * or packager/legal/LICENSE.txt.  See the License for the specific
 * language governing permissions and limitations under the License.
 *
 * When distributing the software, include this License Header Notice in each
 * file and include the License file at packager/legal/LICENSE.txt.
 *
 * GPL Classpath Exception:
 * Oracle designates this particular file as subject to the "Classpath"
 * exception as provided by Oracle in the GPL Version 2 section of the License
 * file that accompanied this code.
 *
 * Modifications:
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 */

/**
 * DumpMapping.java 
 * 
 */

package com.sun.jdo.api.persistence.model.util;

import java.util.*;
import java.io.PrintStream;

import com.sun.jdo.api.persistence.model.*;
import com.sun.jdo.api.persistence.model.mapping.*;
import com.sun.jdo.api.persistence.model.mapping.impl.*;
import com.sun.jdo.api.persistence.model.jdo.*;

import org.netbeans.modules.dbschema.ColumnElement;
import org.netbeans.modules.dbschema.ColumnPairElement;

public class DumpMapping
{
	private static Model model; 

	static 
	{
		// initialize the model reference
		setModel(Model.RUNTIME);
	}

	/** Print out the cache of MappingClassElements to the specified PrintStream.
	 * @param stream PrintStream used to dump the info
	 */
	public static void dumpMappingCache (PrintStream stream)
	{
		stream.println("Mapping cache (class names -> MappingClassElements)"); // NOI18N
		for (Iterator i = model.getMappingCache().entrySet().iterator(); 
			 i.hasNext();)
		{
			Map.Entry entry = (Map.Entry)i.next();
			String className = (String)entry.getKey();
			MappingClassElement mce =  (MappingClassElement)entry.getValue();
			String mceRepr = mce.getClass() + "@" + // NOI18N
				Integer.toHexString(System.identityHashCode(mce));
			stream.println("\t" + className + " ->\t" + mceRepr); //NOI18N
		}
	}

	/** Print out the cache of classLoaders to the specified PrintStream.
	 * @param stream PrintStream used to dump the info
	 */
	public static void dumpClassLoaderCache (PrintStream stream)
	{
		stream.println("ClassLoader cache (class names -> ClassLoaders)"); //NOI18N
		for (Iterator i = model.getClassLoaderCache().entrySet().iterator(); 
			 i.hasNext();)
		{
			Map.Entry entry = (Map.Entry)i.next();
			String className = (String)entry.getKey();
			ClassLoader classLoader = (ClassLoader)entry.getValue();
			stream.println("\t" + className + " ->\t" + classLoader);  //NOI18N
		}
	}

	public static void main(String[] args)
	{
		for (int i = 0; i < args.length; i++)
		{
			String className = args[i];
			println(0, "\nClass " + className + ":");  //NOI18N

			try
			{
				MappingClassElementImpl mce = (MappingClassElementImpl)model.getMappingClass(className);
				if (mce != null)
				{
					printPersistenceClassElement(mce.getPersistenceElement());
					printMappingClassElement(mce);
				}
				else
				{
					println(0, "Cannot find mapping info for class " + className + " (getMappingClass returns null)");  //NOI18N
				}
			}
			catch (Exception e)
			{
				println(0, "Problems during accessing mapping info for class " + className);  //NOI18N
				e.printStackTrace();
			}
		}
	}

	/** Sets the internal model reference used by the DumpMapping methods
	 * to the specified Model instance.
	 * @param newModel the Model instance to be used by DumpMapping
	 */
	public static void setModel(Model newModel)
	{
		model = newModel;
	}

	// ----- JDO model ------

	public static void printPersistenceClassElement(PersistenceClassElement pce)
	{
		println(0, "\n--> PersistenceClassElement ");  //NOI18N
		println(1, "package  = " + pce.getPackage());  //NOI18N
		println(1, "name     = " + pce.getName());  //NOI18N
		println(1, "identity = " + getObjectIdentityTypeRepr(pce.getObjectIdentityType()));  //NOI18N
		println(1, "keyClass = " + pce.getKeyClass());  //NOI18N

		printPersistenceFieldElements(1, pce.getFields());
		printConcurrencyGroupElements(1, pce.getConcurrencyGroups());

		println(0, "<-- PersistenceClassElement\n ");  //NOI18N
	}


	public static void printPersistenceFieldElements(int tabs, PersistenceFieldElement[] fields)
	{
		if ((fields != null) && (fields.length > 0))
		{
			println(tabs, "--> fields ");  //NOI18N
			for (int i = 0; i < fields.length; i++)
			{
				PersistenceFieldElement pfe = fields[i];
				
				println(tabs, "[" + i + "] " + pfe.getClass());  //NOI18N
				println(tabs+1, "name             = " + pfe.getName());  //NOI18N
				println(tabs+1, "declaringClass   = " + pfe.getDeclaringClass());  //NOI18N
				println(tabs+1, "fieldNumber      = " + pfe.getFieldNumber());  //NOI18N
				println(tabs+1, "persistenceType  = " + getPersistenceTypeRepr(pfe.getPersistenceType()));  //NOI18N
				println(tabs+1, "read / write     = " + pfe.isReadSensitive() + " / " + pfe.isWriteSensitive());  //NOI18N
				println(tabs+1, "isKey            = " + pfe.isKey());  //NOI18N
				
				if (pfe instanceof RelationshipElement)
				{
					RelationshipElement re = (RelationshipElement) pfe;
					
					println(tabs+1, "bounds          = " + re.getLowerBound() + " / " +  re.getUpperBound());  //NOI18N
					println(tabs+1, "deleteAction    = " + re.getDeleteAction());  //NOI18N
					println(tabs+1, "updateAction    = " + re.getUpdateAction());  //NOI18N
					println(tabs+1, "collectionClass = " + re.getCollectionClass());  //NOI18N
					println(tabs+1, "elementClass	 = " + re.getElementClass());  //NOI18N
					println(tabs+1, "isPrefetch      = " + re.isPrefetch());  //NOI18N
				}
				printConcurrencyGroupElements(tabs+1, pfe.getConcurrencyGroups());
			}
			println(tabs, "<-- fields ");			  //NOI18N
		}
	}

	public static void printConcurrencyGroupElements(int tabs, ConcurrencyGroupElement[] groups)
	{
		if ((groups != null) && (groups.length > 0))
		{
			println(tabs, "--> concurrency groups");  //NOI18N
			for (int i = 0; i < groups.length; i++)
			{
				ConcurrencyGroupElement cg = groups[i];
				println(tabs, "[" + i + "] " + cg.getClass());  //NOI18N
				println(tabs+1, "name           = " + cg.getName());  //NOI18N
				println(tabs+1, "declaringClass = " + cg.getDeclaringClass());  //NOI18N
			}
			println(tabs, "<-- concurrency groups");  //NOI18N
		}
	}

	// ----- Mapping model ------

	public static void printMappingClassElement(MappingClassElement mce)
	{
		println(0, "\n--> MappingClassElement");  //NOI18N
		
		println(1, "databaseRoot = " + mce.getDatabaseRoot());  //NOI18N
		printMappingTableElements(1, mce.getTables());
		printMappingFieldElements(1, mce.getFields());

		println(0, "<-- MappingClassElement");  //NOI18N
	}

	public static void printMappingTableElements(int tabs, ArrayList tables)
	{
		final int count = ((tables != null) ? tables.size() : 0);

		if (count > 0)
		{
			println(tabs, "--> tables ");  //NOI18N
			for (int i = 0; i < count; i++)
			{
				MappingTableElementImpl mte = (MappingTableElementImpl) tables.get(i);

				println(tabs, "[" + i + "] " + mte.getClass());  //NOI18N

				println(tabs+1, "table           = " + mte.getTable());  //NOI18N
				println(tabs+1, "tableObject     = " + mte.getTableObject());  //NOI18N
				println(tabs+1, "key             = " + mte.getKey());  //NOI18N
				println(tabs+1, "keyObjects      = " + mte.getKeyObjects());  //NOI18N
				printMappingRefKeyElements(tabs+1, mte.getReferencingKeys());
			}
			println(tabs, "<-- tables ");  //NOI18N
		}
	 }

	public static void printMappingRefKeyElements(int tabs, ArrayList refKeys)
	{
		final int count = ((refKeys != null) ? refKeys.size() : 0);

		if (count > 0)
		{
			println(tabs, "--> tables ");  //NOI18N
			for (int i = 0; i < count; i++)
			{
				MappingReferenceKeyElement mrke = (MappingReferenceKeyElement)refKeys.get(i);

				println(tabs, "[" + i + "] " + mrke.getClass());  //NOI18N

				println(tabs+1, "table           = " + mrke.getDeclaringTable());  //NOI18N
				println(tabs+1, "pairs           = " + mrke.getColumnPairNames());  //NOI18N
			}
			println(tabs, "<-- tables ");  //NOI18N
		}
	 }

 	public static void printMappingFieldElements(int tabs, ArrayList fields)
	{
		final int count = ((fields != null) ? fields.size() : 0);

		if (count > 0)
		{
			println(tabs, "--> fields ");  //NOI18N
			for (int i = 0; i < count; i++)
			{
				MappingFieldElementImpl mfe = (MappingFieldElementImpl) fields.get(i);
				
				println(tabs, "[" + i + "] " + mfe.getClass());  //NOI18N
				println(tabs+1, "name            = " + mfe.getName());  //NOI18N
				println(tabs+1, "fetchGroup      = " + mfe.getFetchGroup());  //NOI18N
				println(tabs+1, "columns         = " + mfe.getColumns());  //NOI18N
				
				if (!(mfe instanceof MappingRelationshipElement))
				{
					println(tabs+1, "columnObjects	 = " + mfe.getColumnObjects());  //NOI18N
				}
				else
				{
					MappingRelationshipElementImpl mre = (MappingRelationshipElementImpl) mfe;

					ArrayList columnObjects = mre.getColumnObjects();
					int colCount = 
						((columnObjects != null) ? columnObjects.size() : 0);
					if (colCount > 0)
					{
						println(tabs+1, "--> columnsObjects ");  //NOI18N
						for (int j = 0; j < colCount; j++)
						{
							ColumnPairElement fce = (ColumnPairElement) columnObjects.get(j);
							ColumnElement rce = (fce!=null)?fce.getReferencedColumn():null;
							println(tabs+1, "[" + j + "] " + fce + " -> " + rce);  //NOI18N
						}
						println(tabs+1, "<-- columnsObjects ");  //NOI18N
					}
					
					println(tabs+1, "associatedColumns = " + mre.getAssociatedColumns());  //NOI18N

					ArrayList associatedColumnObjects = mre.getAssociatedColumnObjects();
					colCount = ((associatedColumnObjects != null) ? 
						associatedColumnObjects.size() : 0);
					if (colCount > 0)
					{
						println(tabs+1, "--> associatedColumnObjects ");  //NOI18N
						for (int j = 0; j < colCount; j++)
						{
							ColumnPairElement fce = (ColumnPairElement) associatedColumnObjects.get(j);
							ColumnElement rce = (fce!=null)?fce.getReferencedColumn():null;
							println(tabs+1, "[" + j + "] " + fce + " -> " + rce);  //NOI18N
						}
						println(tabs+1, "<-- associatedColumnObjects ");  //NOI18N
					}
				}
			}
			println(tabs, "<-- fields ");  //NOI18N
		}

	}

   // ----- helper methods -----

	static String getObjectIdentityTypeRepr(int objectIdentityType)
	{
		String repr;
		switch (objectIdentityType)
		{
		case PersistenceClassElement.APPLICATION_IDENTITY:
			return "APPLICATION_IDENTITY";  //NOI18N
		case PersistenceClassElement.DATABASE_IDENTITY:
			return "DATABASE_IDENTITY_IDENTITY";  //NOI18N
		case PersistenceClassElement.UNMANAGED_IDENTITY:
			return "UNMANAGED_IDENTITY";  //NOI18N
		default:
			return "UNKNOWN";  //NOI18N
		}
	}
	
	static String getPersistenceTypeRepr(int persistenceType)
	{
		String repr;
		switch (persistenceType)
		{
		case PersistenceFieldElement.PERSISTENT:
			return "PERSISTENT";  //NOI18N
		case PersistenceFieldElement.DERIVED:
			return "DERIVED";  //NOI18N
		case PersistenceFieldElement.TRANSIENT:
			return "TRANSIENT";  //NOI18N
		default:
			return "UNKNOWN";  //NOI18N
		}
	}
	
	static void println(int indent, String text)
	{
		for (int i = 0; i < indent; i++)
		{
			System.out.print("\t");  //NOI18N
		}
		
		System.out.println(text);
	}
}