com.cantaa.util.resource.ResourceManager Maven / Gradle / Ivy
package com.cantaa.util.resource;
import java.text.MessageFormat;
import java.util.MissingResourceException;
import java.util.ResourceBundle;
import com.cantaa.util.MessageHolder;
/**
* Convenient Manager around a resource bundle.
* This class is a pseudo singleton. You can create more then one instance but only the last
* created instance can be retrieved with the getInstance-Method.
*
* If you have only one bundle, then call the constructor once and pass the bundlename to it. From there
* you can always get a reference to the manager with the static getInstance-Method.
*
* The manager can be configured through Spring by just adding it as a bean and configuring the
* bundlename as a constructor parameter.
*
* @author Hans Lesmeister
*
* @deprecated use BundleProvider instead
*/
public class ResourceManager implements MessageResolver {
private volatile static ResourceManager resourceManager;
private String bundleName;
/**
* Constructor
* @param bundleName fully qualified resource name, i.e. "com.cantaa.res.Resource" (without extension .properties)
*/
public ResourceManager(String bundleName) {
this.bundleName = bundleName;
resourceManager = this;
}
/**
* Get the one and only singleton instance.
* @return The instance or null if no instance exists
*/
public static ResourceManager getInstance() {
return resourceManager;
}
public MessageBean createMessageBean(String key, Object...insets) {
return new MessageBean(this, key, insets);
}
/**
* {@inheritDoc}
*/
public String getString(String key, Object...insets) {
String text;
try {
ResourceBundle bundle = ResourceBundle.getBundle(bundleName);
text = bundle.getString(key);
}
catch (MissingResourceException e) {
text = key;
}
return MessageFormat.format(text, insets);
}
/**
* Gets a string from the resource bundle. The resource key and insets are taken
* from the passed bean
* @param messageBean
* @return String or null if the bean is null
*/
public String getString(MessageHolder messageBean) {
if (messageBean == null) {
return null;
}
return getString(messageBean.getKey(), messageBean.getInsets());
}
/**
* Name of the resource bundle
* @return Name which was originally passed to the constructor
*/
public String getBundleName() {
return bundleName;
}
public void setBundleName(String bundleName) {
this.bundleName = bundleName;
}
}