org.eclipse.jdt.debug/eval/org/eclipse/jdt/internal/debug/eval/ast/instructions/PushStaticFieldVariable.java

package org.eclipse.jdt.internal.debug.eval.ast.instructions;

/*
 * (c) Copyright IBM Corp. 2000, 2001.
 * All Rights Reserved.
 */

import java.text.MessageFormat;

import org.eclipse.core.runtime.CoreException;
import org.eclipse.core.runtime.Status;
import org.eclipse.jdt.debug.core.IJavaClassType;
import org.eclipse.jdt.debug.core.IJavaInterfaceType;
import org.eclipse.jdt.debug.core.IJavaType;
import org.eclipse.jdt.debug.core.IJavaVariable;
import org.eclipse.jdt.debug.core.JDIDebugModel;

/**
 * Pushes the value of the static fields of the given type
 * onto the stack.
 */
public class PushStaticFieldVariable extends CompoundInstruction {

	private String fFieldName;

	private String fQualifiedTypeName;

	public PushStaticFieldVariable(
		String fieldName,
		String qualifiedTypeName,
		int start) {
		super(start);
		fFieldName = fieldName;
		fQualifiedTypeName = qualifiedTypeName;
	}

	public void execute() throws CoreException {
		IJavaType receiver = getType(fQualifiedTypeName);

		IJavaVariable field = null;

		if (receiver instanceof IJavaInterfaceType) {
			field = ((IJavaInterfaceType) receiver).getField(fFieldName);
		} else if (receiver instanceof IJavaClassType) {
			field = ((IJavaClassType) receiver).getField(fFieldName);
		}
		if (field == null) {
			String message = MessageFormat.format(InstructionsEvaluationMessages.getString("PushStaticFieldVariable.Cannot_find_the_field_{0}_in_{1}_1"), new String[] { fFieldName, fQualifiedTypeName }); //$NON-NLS-1$
			throw new CoreException(
				new Status(
					Status.ERROR,
					JDIDebugModel.getPluginIdentifier(),
					Status.OK,
					message,
					null));
			// couldn't find the field
		}
		push(field);
	}

	public String toString() {
		return MessageFormat.format(InstructionsEvaluationMessages.getString("PushStaticFieldVariable.push_static_field_{0}_2"), new String[] { fFieldName }); //$NON-NLS-1$
	}

}