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TIKA-2389 -- allow users to configure warnings for problems during in…
…itialization
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tika-core/src/main/java/org/apache/tika/config/InitializableProblemHandler.java
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| /* | ||
| * Licensed to the Apache Software Foundation (ASF) under one or more | ||
| * contributor license agreements. See the NOTICE file distributed with | ||
| * this work for additional information regarding copyright ownership. | ||
| * The ASF licenses this file to You under the Apache License, Version 2.0 | ||
| * (the "License"); you may not use this file except in compliance with | ||
| * the License. You may obtain a copy of the License at | ||
| * | ||
| * http://www.apache.org/licenses/LICENSE-2.0 | ||
| * | ||
| * Unless required by applicable law or agreed to in writing, software | ||
| * distributed under the License is distributed on an "AS IS" BASIS, | ||
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. | ||
| * See the License for the specific language governing permissions and | ||
| * limitations under the License. | ||
| */ | ||
| package org.apache.tika.config; | ||
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| import java.util.logging.Level; | ||
| import java.util.logging.Logger; | ||
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| import org.apache.tika.exception.TikaConfigException; | ||
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| /** | ||
| * This is to be used to handle potential recoverable problems that | ||
| * might arise during initialization. | ||
| */ | ||
| public interface InitializableProblemHandler { | ||
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| void handleInitializableProblem(String className, String message) throws TikaConfigException; | ||
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| /** | ||
| * Strategy that simply ignores all problems. | ||
| */ | ||
| InitializableProblemHandler IGNORE = new InitializableProblemHandler() { | ||
| public void handleInitializableProblem(String className, String message) { | ||
| } | ||
| @Override | ||
| public String toString() { | ||
| return "IGNORE"; | ||
| } | ||
| }; | ||
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| /** | ||
| * Strategy that logs warnings of all problems using a {@link Logger} | ||
| * created using the given class name. | ||
| */ | ||
| InitializableProblemHandler INFO = new InitializableProblemHandler() { | ||
| public void handleInitializableProblem(String classname, String message) { | ||
| Logger.getLogger(classname).log( | ||
| Level.INFO, message); | ||
| } | ||
| @Override | ||
| public String toString() { | ||
| return "INFO"; | ||
| } | ||
| }; | ||
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| /** | ||
| * Strategy that logs warnings of all problems using a {@link Logger} | ||
| * created using the given class name. | ||
| */ | ||
| InitializableProblemHandler WARN = new InitializableProblemHandler() { | ||
| public void handleInitializableProblem(String classname, String message) { | ||
| Logger.getLogger(classname).log( | ||
| Level.WARNING, message); | ||
| } | ||
| @Override | ||
| public String toString() { | ||
| return "WARN"; | ||
| } | ||
| }; | ||
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| InitializableProblemHandler THROW = new InitializableProblemHandler() { | ||
| public void handleInitializableProblem(String classname, String message) throws TikaConfigException { | ||
| throw new TikaConfigException(message); | ||
| } | ||
| @Override | ||
| public String toString() { | ||
| return "THROW"; | ||
| } | ||
| }; | ||
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| InitializableProblemHandler DEFAULT = WARN; | ||
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| } |
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