74 lines
2.7 KiB
Java
74 lines
2.7 KiB
Java
/*
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* Licensed to the Apache Software Foundation (ASF) under one or more
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* contributor license agreements. See the NOTICE file distributed with
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* this work for additional information regarding copyright ownership.
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* The ASF licenses this file to You under the Apache License, Version 2.0
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* (the "License"); you may not use this file except in compliance with
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* the License. You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*
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* $Header:$
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*/
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package org.apache.beehive.controls.runtime.generator;
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import org.apache.velocity.runtime.RuntimeServices;
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import org.apache.velocity.runtime.log.LogSystem;
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import com.sun.mirror.apt.Messager;
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/**
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* The VelocityAptLogSystem implements the <code>org.apache.velocity.runtime.LogSystem</code>
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* interface for logging messages from Velocity and routes warnings and errors to the log
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* system of APT.
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*/
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public class VelocityAptLogSystem implements LogSystem
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{
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/**
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* This is the name of the Velocity configuration property that will be used to pass
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* the APT environment from the execution environment into the logger instance. This
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* property must be set on the VelocityEngine instance, and the value should be the
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* <code>com.sun.mirror.apt.Messager</apt> instance that should be used to log messages.
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*/
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static final String APT_ENV_PROPERTY = VelocityAptLogSystem.class + "." + "environment";
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/**
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* The prefix to apply to Velocity error and warnings before passing to APT, to make it
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* easier to identify Velocity output
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*/
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static final private String MESSAGE_PREFIX = "VELOCITY: ";
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/**
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* This can be set to true when debugging Velocity codegen templates to have all output
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* from Velocity sent to the APT logger
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*/
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static final private boolean _debugging = false;
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public VelocityAptLogSystem(Messager messager)
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{
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_messager = messager;
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}
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public void init(RuntimeServices rs) throws java.lang.Exception
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{
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}
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public void logVelocityMessage(int level, java.lang.String message)
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{
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if (level == LogSystem.ERROR_ID)
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_messager.printError(MESSAGE_PREFIX + message);
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else if (level == LogSystem.WARN_ID)
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_messager.printWarning(MESSAGE_PREFIX + message);
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else if (_debugging)
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_messager.printNotice(MESSAGE_PREFIX + message);
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}
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Messager _messager;
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}
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