/*
* 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.shindig.common;
import com.google.inject.AbstractModule;
import com.google.inject.CreationException;
import com.google.inject.name.Names;
import com.google.inject.spi.Message;
import org.apache.commons.io.IOUtils;
import org.apache.shindig.common.util.ResourceLoader;
import java.io.IOException;
import java.io.InputStream;
import java.util.Arrays;
import java.util.Properties;
/**
* Injects everything from the a property file as a Named value
* Uses the default shindig.properties file if no other is provided
*/
public class PropertiesModule extends AbstractModule {
private final static String DEFAULT_PROPERTIES = "shindig.properties";
private final Properties properties;
public PropertiesModule() {
this.properties = readPropertyFile(getDefaultPropertiesPath());
}
public PropertiesModule(String propertyFile) {
this.properties = readPropertyFile(propertyFile);
}
public PropertiesModule(Properties properties) {
this.properties = properties;
}
@Override
protected void configure() {
Names.bindProperties(this.binder(), getProperties());
}
protected static String getDefaultPropertiesPath() {
return DEFAULT_PROPERTIES;
}
protected Properties getProperties() {
return properties;
}
private Properties readPropertyFile(String propertyFile) {
Properties properties = new Properties();
InputStream is = null;
try {
is = ResourceLoader.openResource(propertyFile);
properties.load(is);
} catch (IOException e) {
throw new CreationException(Arrays.asList(
new Message("Unable to load properties: " + propertyFile)));
} finally {
IOUtils.closeQuietly( is );
}
return properties;
}
}