| /* |
| * 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.directory.studio.ldapbrowser.common.widgets; |
| |
| |
| import java.nio.charset.Charset; |
| |
| import org.apache.directory.studio.ldapbrowser.core.BrowserCoreConstants; |
| |
| |
| /** |
| * The FileEncodingInput is an OptionInput with fixed options. |
| * It is used to select the file encoding. The default |
| * value is always the platform's default encoding. |
| * The other options are the values return from |
| * {@link Charset#availableCharsets()}. No custom input is allowed. |
| * |
| * @author <a href="mailto:dev@directory.apache.org">Apache Directory Project</a> |
| */ |
| public class FileEncodingInput extends OptionsInput |
| { |
| |
| /** |
| * Creates a new instance of FileEncodingInput. |
| * |
| * @param initialRawValue the initial raw value |
| * @param asGroup the asGroup flag |
| */ |
| public FileEncodingInput( String initialRawValue, boolean asGroup ) |
| { |
| super( |
| Messages.getString( "FileEncodingInput.FileEncoding" ), getDefaultDisplayValue(), getDefaultRawValue(), getOtherDisplayValues(), //$NON-NLS-1$ |
| getOtherRawValues(), initialRawValue, asGroup, false ); |
| |
| } |
| |
| |
| /** |
| * Gets the default display value. |
| * |
| * @return the default display value |
| */ |
| private static String getDefaultDisplayValue() |
| { |
| return getCharsetDisplayValue( getDefaultRawValue() ); |
| } |
| |
| |
| /** |
| * Gets the default raw value, always the platform's |
| * default encoding. |
| * |
| * @return the default raw value |
| */ |
| private static String getDefaultRawValue() |
| { |
| return BrowserCoreConstants.DEFAULT_ENCODING; |
| } |
| |
| |
| /** |
| * Gets the other display values. |
| * |
| * @return the other display values |
| */ |
| private static String[] getOtherDisplayValues() |
| { |
| String[] otherEncodingsRawValues = getOtherRawValues(); |
| String[] otherEncodingsDisplayValues = new String[otherEncodingsRawValues.length]; |
| for ( int i = 0; i < otherEncodingsDisplayValues.length; i++ ) |
| { |
| String rawValue = otherEncodingsRawValues[i]; |
| otherEncodingsDisplayValues[i] = getCharsetDisplayValue( rawValue ); |
| } |
| return otherEncodingsDisplayValues; |
| } |
| |
| |
| /** |
| * Gets the other raw values. That are all values |
| * returned from {@link Charset#availableCharsets()}. |
| * |
| * @return the other raw values |
| */ |
| private static String[] getOtherRawValues() |
| { |
| String[] otherEncodingsRawValues = ( String[] ) Charset.availableCharsets().keySet().toArray( new String[0] ); |
| return otherEncodingsRawValues; |
| } |
| |
| |
| /** |
| * Gets the charset display value. |
| * |
| * @param charsetRawValue the charset raw value |
| * |
| * @return the charset display value |
| */ |
| private static String getCharsetDisplayValue( String charsetRawValue ) |
| { |
| try |
| { |
| Charset charset = Charset.forName( charsetRawValue ); |
| return charset.displayName(); |
| } |
| catch ( Exception e ) |
| { |
| return charsetRawValue; |
| } |
| } |
| |
| } |