com.subakva.formicid.converters.FileSetConverter.java Source code

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Here is the source code for com.subakva.formicid.converters.FileSetConverter.java

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/*
 * Copyright 2007 Jason Wadsworth
 * 
 * Licensed 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 com.subakva.formicid.converters;

import java.beans.PropertyDescriptor;
import java.io.File;
import java.lang.reflect.InvocationTargetException;

import com.subakva.formicid.Container;

import org.apache.commons.beanutils.ConversionException;
import org.apache.commons.beanutils.Converter;
import org.apache.commons.beanutils.PropertyUtils;
import org.apache.tools.ant.types.FileSet;
import org.apache.tools.ant.types.selectors.FilenameSelector;
import org.mozilla.javascript.Scriptable;
import org.mozilla.javascript.Undefined;

public class FileSetConverter implements Converter {

    private final Container container;

    public FileSetConverter(Container container) {
        this.container = container;
    }

    public FileSet convert(Class type, Object value) {
        if (value == null || value.equals(Undefined.instance)) {
            throw new ConversionException("No value specified");
        }
        if (value instanceof FileSet) {
            return (FileSet) value;
        } else if (value instanceof Scriptable) {
            FileSet fileSet = (FileSet) container.getProject().createDataType("fileset");
            Scriptable options = (Scriptable) value;
            Object[] ids = options.getIds();
            for (int i = 0; i < ids.length; i++) {
                String id = (String) ids[i];
                Object val = options.get(id, options);
                try {
                    PropertyDescriptor descriptor = PropertyUtils.getPropertyDescriptor(fileSet, id);
                    Class<?> propertyType = descriptor.getPropertyType();
                    Converter converter = container.getConverter(propertyType);
                    Object converted = converter.convert(propertyType, val);
                    PropertyUtils.setProperty(fileSet, id, converted);
                } catch (IllegalAccessException e) {
                    throw new RuntimeException(e);
                } catch (InvocationTargetException e) {
                    throw new RuntimeException(e);
                } catch (NoSuchMethodException e) {
                    throw new RuntimeException(e);
                }
            }
            return fileSet;
        } else if (value instanceof String) {
            FileSet fileSet = (FileSet) container.getProject().createDataType("fileset");
            fileSet.setDir(new File("."));
            FilenameSelector selector = new FilenameSelector();
            selector.setName((String) value);
            fileSet.add(selector);
            return fileSet;
        } else {
            throw new ConversionException("" + value);
        }
    }
}