package org.eclipse.jdt.core; | |
/* | |
* (c) Copyright IBM Corp. 2000, 2001. | |
* All Rights Reserved. | |
*/ | |
import org.eclipse.core.runtime.CoreException; | |
import org.eclipse.core.runtime.IPath; | |
import org.eclipse.core.runtime.IStatus; | |
import org.eclipse.jdt.internal.core.JavaModelStatus; | |
/** | |
* A checked exception representing a failure in the Java model. | |
* Java model exceptions contain a Java-specific status object describing the | |
* cause of the exception. | |
* <p> | |
* This class is not intended to be subclassed by clients. Instances of this | |
* class are automatically created by the Java model when problems arise, so | |
* there is generally no need for clients to create instances. | |
* </p> | |
* | |
* @see IJavaModelStatus | |
* @see IJavaModelStatusConstants | |
*/ | |
public class JavaModelException extends CoreException { | |
CoreException nestedCoreException; | |
/** | |
* Creates a Java model exception that wrappers the given <code>Throwable</code>. | |
* The exception contains a Java-specific status object with severity | |
* <code>IStatus.ERROR</code> and the given status code. | |
* | |
* @param exception the <code>Throwable</code> | |
* @param code one of the Java-specific status codes declared in | |
* <code>IJavaModelStatusConstants</code> | |
* @see IJavaModelStatusConstants | |
* @see org.eclipse.core.runtime.IStatus#ERROR | |
*/ | |
public JavaModelException(Throwable e, int code) { | |
this(new JavaModelStatus(code, e)); | |
} | |
/** | |
* Creates a Java model exception for the given <code>CoreException</code>. | |
* Equivalent to | |
* <code>JavaModelException(exception,IJavaModelStatusConstants.CORE_EXCEPTION</code>. | |
* | |
* @param exception the <code>CoreException</code> | |
*/ | |
public JavaModelException(CoreException exception) { | |
super(exception.getStatus()); | |
this.nestedCoreException = exception; | |
} | |
/** | |
* Creates a Java model exception for the given Java-specific status object. | |
* | |
* @param status the Java-specific status object | |
*/ | |
public JavaModelException(IJavaModelStatus status) { | |
super(status); | |
} | |
/** | |
* Returns the underlying <code>Throwable</code> that caused the failure. | |
* | |
* @return the wrappered <code>Throwable</code>, or <code>null</code> if the | |
* direct case of the failure was at the Java model layer | |
*/ | |
public Throwable getException() { | |
if (this.nestedCoreException == null) { | |
return getStatus().getException(); | |
} else { | |
return this.nestedCoreException; | |
} | |
} | |
/** | |
* Returns the Java model status object for this exception. | |
* Equivalent to <code>(IJavaModelStatus) getStatus()</code>. | |
* | |
* @return a status object | |
*/ | |
public IJavaModelStatus getJavaModelStatus() { | |
IStatus status = this.getStatus(); | |
if (status instanceof IJavaModelStatus) { | |
return (IJavaModelStatus)status; | |
} else { | |
// A regular IStatus is created only in the case of a CoreException. | |
// See bug 13492 Should handle JavaModelExceptions that contains CoreException more gracefully | |
return new JavaModelStatus(this.nestedCoreException); | |
} | |
} | |
/** | |
* Returns whether this exception indicates that a Java model element does not | |
* exist. Such exceptions have a status with a code of | |
* <code>IJavaModelStatusConstants.ELEMENT_DOES_NOT_EXIST</code>. | |
* This is a convenience method. | |
* | |
* @return <code>true</code> if this exception indicates that a Java model | |
* element does not exist | |
* @see IJavaModelStatus#isDoesNotExist | |
* @see IJavaModelStatusConstants#ELEMENT_DOES_NOT_EXIST | |
*/ | |
public boolean isDoesNotExist() { | |
IJavaModelStatus javaModelStatus = getJavaModelStatus(); | |
return javaModelStatus != null && javaModelStatus.isDoesNotExist(); | |
} | |
/** | |
* Returns a printable representation of this exception suitable for debugging | |
* purposes only. | |
*/ | |
public String toString() { | |
StringBuffer buffer= new StringBuffer(); | |
buffer.append("Java Model Exception: "); //$NON-NLS-1$ | |
if (getException() != null) { | |
if (getException() instanceof CoreException) { | |
CoreException c= (CoreException)getException(); | |
buffer.append("Core Exception [code "); //$NON-NLS-1$ | |
buffer.append(c.getStatus().getCode()); | |
buffer.append("] "); //$NON-NLS-1$ | |
buffer.append(c.getStatus().getMessage()); | |
} else { | |
buffer.append(getException().toString()); | |
} | |
} else { | |
buffer.append(getStatus().toString()); | |
} | |
return buffer.toString(); | |
} | |
} |