com.sap.research.connectivity.gw.converters.GwEntityClassConverter.java Source code

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Here is the source code for com.sap.research.connectivity.gw.converters.GwEntityClassConverter.java

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/*
 * Copyright 2012 SAP AG
 *
 * 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.sap.research.connectivity.gw.converters;

import java.io.File;
import java.util.List;
import java.util.SortedSet;
import java.util.TreeSet;
import org.apache.felix.scr.annotations.Component;
import org.apache.felix.scr.annotations.Service;
import org.springframework.roo.shell.Completion;
import org.springframework.roo.shell.Converter;
import org.springframework.roo.shell.MethodTarget;
import org.springframework.roo.file.monitor.event.FileDetails;

import com.sap.research.connectivity.gw.GWOperationsUtils;
import com.sap.research.connectivity.gw.GwEntityClass;
import com.sap.research.connectivity.gw.GwUtils;
import com.sap.research.connectivity.gw.parsers.JavaSourceFileEditor;

@Component
@Service

public class GwEntityClassConverter extends GWOperationsUtils implements Converter<GwEntityClass> {

    private static final char SEPARATOR = File.separatorChar;

    public GwEntityClass convertFromText(String value, Class<?> targetType, String optionContext) {
        return new GwEntityClass(value);
    }

    public boolean getAllPossibleValues(List<Completion> completions, Class<?> targetType, String existingData,
            String optionContext, MethodTarget target) {

        //Retrieve all the .java files using provided option context (sub package folder)
        SortedSet<FileDetails> files = new TreeSet<FileDetails>();
        if (!optionContext.isEmpty()) {
            files = fileManager.findMatchingAntPath(getSubPackagePath(optionContext) + SEPARATOR + "*.java");
        }

        //Iterate through each class and include only those classes which have gateway connectivity for auto completion
        for (FileDetails f : files) {

            String filePath = f.getCanonicalPath();
            String entityClass = filePath.substring(filePath.lastIndexOf(SEPARATOR) + 1, filePath.length());

            String entityName = entityClass.substring(0, entityClass.indexOf(".java"));

            JavaSourceFileEditor entityClassFile = getJavaFileEditor("domain", entityName);

            String nameSpace = GwUtils.getNamespaceFromClass(entityClassFile);

            if (!nameSpace.isEmpty())
                completions.add(new Completion(entityName));
        }

        return false;
    }

    public boolean supports(Class<?> type, String optionContext) {
        return GwEntityClass.class.isAssignableFrom(type);
    }

}