/*
 * The contents of this file are subject to the terms 
 * of the Common Development and Distribution License 
 * (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/CDDLv1.0.html or
 * glassfish/bootstrap/legal/CDDLv1.0.txt.
 * See the License for the specific language governing 
 * permissions and limitations under the License.
 * 
 * When distributing Covered Code, include this CDDL 
 * Header Notice in each file and include the License file 
 * at glassfish/bootstrap/legal/CDDLv1.0.txt.  
 * If applicable, add the following below the CDDL Header, 
 * with the fields enclosed by brackets [] replaced by
 * you own identifying information: 
 * "Portions Copyrighted [year] [name of copyright owner]"
 * 
 * Copyright 2006 Sun Microsystems, Inc. All rights reserved.
 */
package com.sun.enterprise.tools.verifier.tests.ejb.entity;

import com.sun.enterprise.tools.verifier.tests.ejb.EjbTest;
import com.sun.enterprise.deployment.*;
import com.sun.enterprise.tools.verifier.*;
import com.sun.enterprise.tools.verifier.tests.ejb.MethodUtils;
import com.sun.enterprise.tools.verifier.tests.ejb.EjbCheck;
import java.lang.ClassLoader;
import com.sun.enterprise.tools.verifier.tests.*;
import java.util.*;
import java.lang.reflect.*;

/** 
 * Entity Bean transaction demarcation type home interface methods test.
 * Transaction attributes must be specified for the methods of an entity
 * bean's home interface, excluding getEJBMetaData and getHomeHandle methods.
 */
 public class TransactionDemarcationHomeInterface extends EjbTest implements EjbCheck { 

     static String[] EJBObjectMethods = { "getHomeHandle", "getEJBMetaData"};
     
     Result result = null;
     ComponentNameConstructor compName = null;
     
    /** 
     * Entity Bean transaction demarcation type home interface methods test.
     * Transaction attributes must be specified for the methods of an entity
     * bean's home interface, excluding getEJBMetaData and getHomeHandle methods.
     *
     * @param descriptor the Enterprise Java Bean deployment descriptor
     *   
     * @return <code>Result</code> the results for this assertion
     */
    public Result check(EjbDescriptor descriptor) {

	result = getInitializedResult();
	compName = getVerifierContext().getComponentNameConstructor();
	boolean oneFailed = false;
	// hack try/catch block around test, to exit gracefully instead of
	// crashing verifier on getMethodDescriptors() call, XML mods cause
	// java.lang.ClassNotFoundException: verifier.ejb.hello.BogusEJB
	// Replacing <ejb-class>verifier.ejb.hello.HelloEJB with
	//  <ejb-class>verifier.ejb.hello.BogusEJB...
	try {
	    // Transaction attributes must be specified for the methods of an entity
	    // bean's home interface, excluding getEJBMetaData and getHomeHandle methods

	    if (descriptor instanceof EjbEntityDescriptor) {
		if(descriptor.getHomeClassName() != null && !"".equals(descriptor.getHomeClassName()))
		    oneFailed = commonToBothInterfaces(descriptor.getHomeClassName(),descriptor, MethodDescriptor.EJB_HOME);
        else {
            addNaDetails(result, compName);
            result.notApplicable(smh.getLocalString
                         (getClass().getName() + ".notApplicable2",
                          "There is no home interface specified for [ {0} ]",
                          new Object[] {descriptor.getName()}));
            return result;
        }
		//donot need to look at the local interface since the clause is applicable to only the remote interface	
		/*if(oneFailed == false) {
		  if(descriptor.getLocalHomeClassName() != null && !"".equals(descriptor.getLocalHomeClassName()))
		  oneFailed = commonToBothInterfaces(descriptor.getLocalHomeClassName(),descriptor);
		  }*/
		if (oneFailed) {
		    result.setStatus(result.FAILED);
		} else {
		    result.setStatus(result.PASSED);
		}
  
		return result;
	    } else {
		addNaDetails(result, compName);
		result.notApplicable(smh.getLocalString
				     (getClass().getName() + ".notApplicable",
				      "{0} expected {1} bean, but called with {2} bean.",
				      new Object[] {getClass(),"Entity","Session"}));
		return result;
	    } 
	} catch (Throwable t) {
	    addErrorDetails(result, compName);
	    result.failed(smh.getLocalString
			  (getClass().getName() + ".failedException1",
			   "Error: Home interface does not contain class [ {0} ] within bean [ {1} ]",
			   new Object[] { t.getMessage(), descriptor.getName()}));
	    return result;
	}
    }

     /** 
     * This method is responsible for the logic of the test. It is called for both local and remote interfaces.
     * @param descriptor the Enterprise Java Bean deployment descriptor
     * @param home for the Home interface of the Ejb. 
     * @param methodIntf is the interface type
     * @return boolean the results for this assertion i.e if a test has failed or not
     */

    private boolean commonToBothInterfaces(String home, EjbDescriptor descriptor, String methodIntf) {
	boolean oneFailed = false;
	try {
	    Arrays.sort(EJBObjectMethods);
	    Class c = Class.forName(home, false, getVerifierContext().getClassLoader());
	    Method methods[] = c.getDeclaredMethods();
	    boolean lookForIt = false;
	    
	    for (int i=0; i< methods.length; i++) {
		if (Arrays.binarySearch(EJBObjectMethods, methods[i].getName()) < 0) {
            		    try {
			ContainerTransaction containerTransaction = null;
			boolean resolved = false;
/*
                        // This flag is a workaround introduced by Harminder
                        // because currently methodDescriptor.getEjbClassSymbol() is
                        // returning NULL
                        //boolean allMethods = false;
                        boolean wildCardWasPresent = false;
*/

			if (!descriptor.getMethodContainerTransactions().isEmpty()) {
			    for (Enumeration ee = descriptor.getMethodContainerTransactions().keys(); ee.hasMoreElements();) {
				lookForIt = false;
				
				MethodDescriptor methodDescriptor = (MethodDescriptor) ee.nextElement();
 
    /*** Fixed the bug: 4883730. ejbClassSymbol is null when method-intf is not 
     * defined in the xml, since it is an optional field. Removed the earlier 
     * checks. A null method-intf indicates that the method is supposed to be 
     * in both Local & Home interfaces. ***/                    
/*
                                // This code is a workaround introduced by Harminder
                                // because currently methodDescriptor.getEjbClassSymbol() is
                                // returning NULL
                                String methodIntf = null;
                                try {
                                    methodIntf = methodDescriptor.getEjbClassSymbol();
                                } catch ( Exception ex ) {}
                                if ( methodIntf == null ) { //|| methodIntf.equals("") 
                                    //probably a wildcard was there
                                    wildCardWasPresent = true;
                                    continue;
                                }
                                 //allMethods = true;
                                 // end of workaround
*/
                                
				
				// here we have to check that each method descriptor
				// corresponds to a or some methods on the home interface
				// according to the six styles
				// style 1)
                 if (methodDescriptor.getName().equals(MethodDescriptor.ALL_EJB_METHODS)) {
				    // if getEjbClassName() is Remote -> CARRY ON
				    // if Home - PASS
                    if (methodDescriptor.getEjbClassSymbol() == null) {
					lookForIt = true;
                    } else if (methodDescriptor.getEjbClassSymbol().equals(MethodDescriptor.EJB_HOME)) {
					lookForIt = true;
					// if empty String PASS
				    } else if (methodDescriptor.getEjbClassSymbol().equals("")) {
					lookForIt = true;
				    }else if (methodDescriptor.getEjbClassSymbol().equals(MethodDescriptor.EJB_LOCALHOME)) {
					lookForIt = true;
				    } else if (methodDescriptor.getEjbClassSymbol().equals(MethodDescriptor.EJB_REMOTE)) {
					lookForIt = false;
				    } else if (methodDescriptor.getEjbClassSymbol().equals(MethodDescriptor.EJB_LOCAL)) {
					lookForIt = false;
					// else (Bogus)
				    } else {
					// carry on & don't look for 
					// container transaction
					lookForIt = false;
				    }				    				    
				} else if (methodDescriptor.getParameterClassNames() == null) {
				    				    
				    // if (getEjbClassSybol() is Home or is the empty String AND if methods[i].getName().equals(methodDescriptor.getName()) 
				    if (((methodDescriptor.getEjbClassSymbol() == null) || 
					 methodDescriptor.getEjbClassSymbol().equals("") ||
					 methodDescriptor.getEjbClassSymbol().equals(MethodDescriptor.EJB_HOME)||
					 methodDescriptor.getEjbClassSymbol().equals(MethodDescriptor.EJB_LOCALHOME)) &&
					(methods[i].getName().equals(methodDescriptor.getName()))) { 
					//  PASS
					lookForIt = true;
				    } else {
					// carry on
					lookForIt = false;
				    }				    				    
				} else {
				    
				    // if (getEjbClassSybol() is Home or is the empty String AND if methods[i].getName().equals(methodDescriptor.getName()) AND 
				    // the parameters of the method[i] are the same as the parameters of the method descriptor ) 
				    
				    if (((methodDescriptor.getEjbClassSymbol() == null) || 
					 methodDescriptor.getEjbClassSymbol().equals("") || 
					 methodDescriptor.getEjbClassSymbol().equals(MethodDescriptor.EJB_HOME)|| 
					 methodDescriptor.getEjbClassSymbol().equals(MethodDescriptor.EJB_LOCALHOME)) &&
					(methods[i].getName().equals(methodDescriptor.getName())) && 
					(MethodUtils.stringArrayEquals(methodDescriptor.getParameterClassNames(), (new MethodDescriptor(methods[i], methodIntf)).getParameterClassNames()))) { 
					// PASS    	
					lookForIt = true;
				    } else {
					// CARRY ON
					lookForIt = false;
				    }
				    
				}
				
				if (lookForIt) {
				    containerTransaction = 
					(ContainerTransaction) descriptor.getMethodContainerTransactions().get(methodDescriptor);				    				    
				    if (containerTransaction != null) {
					String transactionAttribute  = 
					    containerTransaction.getTransactionAttribute();
					
					// danny is doing this in the DOL, but is it possible to not have 
					// any value for containerTransaction.getTransactionAttribute() 
					// in the DOL? if it is possible to have blank value for this, 
					// then this check is needed here, otherwise we are done and we 
					// don't need this check here
					if (ContainerTransaction.NOT_SUPPORTED.equals(transactionAttribute)
					    || ContainerTransaction.SUPPORTS.equals(transactionAttribute)
					    || ContainerTransaction.REQUIRED.equals(transactionAttribute)
					    || ContainerTransaction.REQUIRES_NEW.equals(transactionAttribute)
					    || ContainerTransaction.MANDATORY.equals(transactionAttribute)
					    || ContainerTransaction.NEVER.equals(transactionAttribute)
					    || (!transactionAttribute.equals(""))) {
					    addGoodDetails(result, compName);
					    result.addGoodDetails(smh.getLocalString
						(getClass().getName() + ".passed",
					         "Valid: [ {0} ] TransactionAttribute [ {1} ] for method [ {2} ] is valid.   Transaction attributes must be specified for all methods except getEJBMetaData and getHomeHandle methods of home interface [ {3} ]",
						 new Object[] {methods[i].getName(),transactionAttribute,methodDescriptor.getName(), home}));
					    resolved = true;
					} else {
					    oneFailed = true;
					    addErrorDetails(result, compName);
					    result.addErrorDetails(smh.getLocalString
						 (getClass().getName() + ".failed",
					      "Error: [ {0} ] TransactionAttribute [ {1} ] for method [ {2} ] " +
					      "is not valid.   Transaction attributes must be specified for " +
					      "all methods except getEJBMetaData and getHomeHandle methods of "+
					      "home interface [ {3} ]",
					      new Object[] {methods[i].getName(), transactionAttribute, methodDescriptor.getName(),home}));
					} 
				    } else {
					oneFailed = true;
					result.addErrorDetails(smh.getLocalString
							       (getClass().getName() + ".failedException",
								"Error: TransactionAttribute is null for method [ {0} ]",
								new Object[] {methodDescriptor.getName()}));
				    }
				}
			    }    
			    // before you go on to the next method,
			    // did you resolve the last one okay?
			    if (!resolved) {
/*
                                // This if-stmt code is a workaround introduced by Harminder
                                // because currently methodDescriptor.getEjbClassSymbol() is
                                // returning NULL
                                //if (allMethods){
                                if (!wildCardWasPresent) {
*/
				oneFailed = true;
				addErrorDetails(result, compName);
				result.addErrorDetails(smh.getLocalString
						       (getClass().getName() + ".failed1",
							"Error: Transaction attributes must be specified for the methods defined in the home interface [ {0} ].  Method [ {1} ] has no transaction attribute defined within this bean [ {2} ].",
							new Object[] {home, methods[i].getName(),descriptor.getName()}));
			    }
/*
                             else {
                                      result.addGoodDetails(smh.getLocalString
                                                                   ("tests.componentNameConstructor",
                                                                    "For [ {0} ]",
                                                                    new Object[] {compName.toString()}));
				      result.addGoodDetails(smh.getLocalString
						(getClass().getName() + ".passed",
					         "Valid: [ {0} ] TransactionAttribute [ {1} ] for method [ {2} ] is valid.   Transaction attributes must be specified for all methods except getEJBMetaData and getHomeHandle methods of home interface [ {3} ]",
						 new Object[] {methods[i].getName(),"*","*", home}));
//                              }
                              // End of workaround code. Note : this else also has to be removed once
                              // the original bug of methodDesc.getEjbClassSymbol() is fixed

                          }
*/
			    
			} else {
			    oneFailed = true;
			    addErrorDetails(result, compName);
			    result.addErrorDetails(smh.getLocalString
						   (getClass().getName() + ".failed2",
						    "Error: There are no method container transactions within this bean [ {0} ].   Transaction attributes must be specified for the methods defined in the home interface [ {1} ].  Method [ {2} ] has no transaction attribute defined.", 
						    new Object[] {descriptor.getName(),home, methods[i].getName()}));
			}
                      if(oneFailed == true && i==methods.length-1)
                       return oneFailed;
                   else
                       continue;

		    } catch (Exception e) {
			addErrorDetails(result, compName);
			result.failed(smh.getLocalString
				      (getClass().getName() + ".failedException1",
				       "Error: Home interface [ {0} ] does not contain class [ {1} ] within bean [ {2} ]",                                                          
				       new Object[] {home, e.getMessage(), descriptor.getName()}));
			oneFailed = true;
			return oneFailed;
		    }
		} // if found relevant Home interface method
		else {
		    oneFailed = true;
		    addErrorDetails(result, compName);
		    result.failed(smh.getLocalString
				  (getClass().getName() + ".failedExcep",
				   "Error: Method [ {0} ] should not be assigned a transaction attribute.",
				   new Object[] {methods[i].getName()}));
		    
		}
	    } // for all the methods within the home interface class, loop
	    return oneFailed;
	} catch (ClassNotFoundException e) {
	    Verifier.debug(e);
	    addErrorDetails(result, compName);
	    result.failed(smh.getLocalString
			  (getClass().getName() + ".failedException2",
			   "Error: Home interface [ {0} ] does not exist or is not loadable within bean [ {1} ]",
			   new Object[] {home, descriptor.getName()}));
	    oneFailed = true;
	    return oneFailed;
	}
    }
 }
