/*******************************************************************************
* Copyright (c) 2000, 2010 IBM Corporation and others.
* All rights reserved. This program and the accompanying materials
* are made available under the terms of the Eclipse Public License v1.0
* which accompanies this distribution, and is available at
* http://www.eclipse.org/legal/epl-v10.html
*
* Contributors:
* IBM Corporation - initial API and implementation
*******************************************************************************/
package org.eclipse.che.ide.runtime;
/**
* A concrete status implementation, suitable either for instantiating or subclassing.
* <p>
* This class can be used without OSGi running.
* </p>
*/
public class Status implements IStatus {
/** Constant used to indicate an unknown plugin id. */
private static final String unknownId = "unknown"; //$NON-NLS-1$
/**
* A standard OK status with an "ok" message.
*
* @since 3.0
*/
public static final IStatus OK_STATUS = new Status(OK, unknownId, OK, "ok", null); //$NON-NLS-1$
/**
* A standard CANCEL status with no message.
*
* @since 3.0
*/
public static final IStatus CANCEL_STATUS = new Status(CANCEL, unknownId, 1, "", null); //$NON-NLS-1$
/**
* The severity. One of
* <ul>
* <li><code>CANCEL</code></li>
* <li><code>ERROR</code></li>
* <li><code>WARNING</code></li>
* <li><code>INFO</code></li>
* <li>or <code>OK</code> (0)</li>
* </ul>
*/
private int severity = OK;
/** Unique identifier of plug-in. */
private String pluginId;
/** Plug-in-specific status code. */
private int code;
/** Message, localized to the current locale. */
private String message;
/** Wrapped exception, or <code>null</code> if none. */
private Throwable exception = null;
/** Constant to avoid generating garbage. */
private static final IStatus[] theEmptyStatusArray = new IStatus[0];
/**
* Creates a new status object. The created status has no children.
*
* @param severity
* the severity; one of <code>OK</code>, <code>ERROR</code>, <code>INFO</code>, <code>WARNING</code>, or
* <code>CANCEL</code>
* @param pluginId
* the unique identifier of the relevant plug-in
* @param code
* the plug-in-specific status code, or <code>OK</code>
* @param message
* a human-readable message, localized to the current locale
* @param exception
* a low-level exception, or <code>null</code> if not applicable
*/
public Status(int severity, String pluginId, int code, String message, Throwable exception) {
setSeverity(severity);
setPlugin(pluginId);
setCode(code);
setMessage(message);
setException(exception);
}
/**
* Simplified constructor of a new status object; assumes that code is <code>OK</code>. The created status has no children.
*
* @param severity
* the severity; one of <code>OK</code>, <code>ERROR</code>, <code>INFO</code>, <code>WARNING</code>, or
* <code>CANCEL</code>
* @param pluginId
* the unique identifier of the relevant plug-in
* @param message
* a human-readable message, localized to the current locale
* @param exception
* a low-level exception, or <code>null</code> if not applicable
* @since org.eclipse.equinox.common 3.3
*/
public Status(int severity, String pluginId, String message, Throwable exception) {
setSeverity(severity);
setPlugin(pluginId);
setMessage(message);
setException(exception);
setCode(OK);
}
/**
* Simplified constructor of a new status object; assumes that code is <code>OK</code> and exception is <code>null</code>. The
* created status has no children.
*
* @param severity
* the severity; one of <code>OK</code>, <code>ERROR</code>, <code>INFO</code>, <code>WARNING</code>, or
* <code>CANCEL</code>
* @param pluginId
* the unique identifier of the relevant plug-in
* @param message
* a human-readable message, localized to the current locale
* @since org.eclipse.equinox.common 3.3
*/
public Status(int severity, String pluginId, String message) {
setSeverity(severity);
setPlugin(pluginId);
setMessage(message);
setCode(OK);
setException(null);
}
/*
* (Intentionally not javadoc'd) Implements the corresponding method on <code>IStatus</code>.
*/
public IStatus[] getChildren() {
return theEmptyStatusArray;
}
/*
* (Intentionally not javadoc'd) Implements the corresponding method on <code>IStatus</code>.
*/
public int getCode() {
return code;
}
/*
* (Intentionally not javadoc'd) Implements the corresponding method on <code>IStatus</code>.
*/
public Throwable getException() {
return exception;
}
/*
* (Intentionally not javadoc'd) Implements the corresponding method on <code>IStatus</code>.
*/
public String getMessage() {
return message;
}
/*
* (Intentionally not javadoc'd) Implements the corresponding method on <code>IStatus</code>.
*/
public String getPlugin() {
return pluginId;
}
/*
* (Intentionally not javadoc'd) Implements the corresponding method on <code>IStatus</code>.
*/
public int getSeverity() {
return severity;
}
/*
* (Intentionally not javadoc'd) Implements the corresponding method on <code>IStatus</code>.
*/
public boolean isMultiStatus() {
return false;
}
/*
* (Intentionally not javadoc'd) Implements the corresponding method on <code>IStatus</code>.
*/
public boolean isOK() {
return severity == OK;
}
/*
* (Intentionally not javadoc'd) Implements the corresponding method on <code>IStatus</code>.
*/
public boolean matches(int severityMask) {
return (severity & severityMask) != 0;
}
/**
* Sets the status code.
*
* @param code
* the plug-in-specific status code, or <code>OK</code>
*/
protected void setCode(int code) {
this.code = code;
}
/**
* Sets the exception.
*
* @param exception
* a low-level exception, or <code>null</code> if not applicable
*/
protected void setException(Throwable exception) {
this.exception = exception;
}
/**
* Sets the message. If null is passed, message is set to an empty string.
*
* @param message
* a human-readable message, localized to the current locale
*/
protected void setMessage(String message) {
if (message == null)
this.message = ""; //$NON-NLS-1$
else
this.message = message;
}
/**
* Sets the plug-in id.
*
* @param pluginId
* the unique identifier of the relevant plug-in
*/
protected void setPlugin(String pluginId) {
Assert.isLegal(pluginId != null && pluginId.length() > 0);
this.pluginId = pluginId;
}
/**
* Sets the severity.
*
* @param severity
* the severity; one of <code>OK</code>, <code>ERROR</code>, <code>INFO</code>, <code>WARNING</code>, or
* <code>CANCEL</code>
*/
protected void setSeverity(int severity) {
Assert.isLegal(severity == OK || severity == ERROR || severity == WARNING || severity == INFO
|| severity == CANCEL);
this.severity = severity;
}
/** Returns a string representation of the status, suitable for debugging purposes only. */
public String toString() {
StringBuffer buf = new StringBuffer();
buf.append("Status "); //$NON-NLS-1$
if (severity == OK) {
buf.append("OK"); //$NON-NLS-1$
} else if (severity == ERROR) {
buf.append("ERROR"); //$NON-NLS-1$
} else if (severity == WARNING) {
buf.append("WARNING"); //$NON-NLS-1$
} else if (severity == INFO) {
buf.append("INFO"); //$NON-NLS-1$
} else if (severity == CANCEL) {
buf.append("CANCEL"); //$NON-NLS-1$
} else {
buf.append("severity="); //$NON-NLS-1$
buf.append(severity);
}
buf.append(": "); //$NON-NLS-1$
buf.append(pluginId);
buf.append(" code="); //$NON-NLS-1$
buf.append(code);
buf.append(' ');
buf.append(message);
buf.append(' ');
buf.append(exception);
return buf.toString();
}
}