com.redhat.red.build.koji.model.util.StringListValueBinder.java Source code

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Here is the source code for com.redhat.red.build.koji.model.util.StringListValueBinder.java

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/**
 * Copyright (C) 2015 Red Hat, Inc. (jcasey@redhat.com)
 *
 * 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.redhat.red.build.koji.model.util;

import org.apache.commons.lang.StringUtils;
import org.commonjava.rwx.binding.mapping.Mapping;
import org.commonjava.rwx.binding.spi.Binder;
import org.commonjava.rwx.binding.spi.BindingContext;
import org.commonjava.rwx.binding.spi.value.CustomValueBinder;
import org.commonjava.rwx.error.XmlRpcException;
import org.commonjava.rwx.spi.XmlRpcListener;
import org.commonjava.rwx.vocab.ValueType;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

import java.util.ArrayList;
import java.util.Arrays;
import java.util.Collection;
import java.util.List;
import java.util.Map;

import static org.apache.commons.lang.StringUtils.join;

/**
 * Created by jdcasey on 1/8/16.
 */
public class StringListValueBinder extends CustomValueBinder {
    public StringListValueBinder(Binder parent, Class<?> type, BindingContext context) {
        super(parent, type, context);
    }

    @Override
    public void generate(XmlRpcListener listener, Object value, Map<Class<?>, Mapping<?>> recipes)
            throws XmlRpcException {
        if (value == null) {
            listener.value(null, ValueType.NIL);
            return;
        } else if (value instanceof Collection<?>) {
            listener.value(StringUtils.join(((Collection<?>) value), " "), ValueType.STRING);
        } else {
            listener.value(value.toString(), ValueType.STRING);
        }
    }

    @Override
    protected ValueType getResultType(Object v, ValueType t) throws XmlRpcException {
        return ValueType.ARRAY;
    }

    @Override
    public Object getResult(Object value, ValueType type) throws XmlRpcException {
        if (value == null) {
            return null;
        }

        Logger logger = LoggerFactory.getLogger(getClass());
        logger.trace("Splitting value into array: '{}' (original type: {})", value.toString().trim(),
                value.getClass().getSimpleName());
        List<String> parts = new ArrayList<>();

        if (value instanceof Collection) {
            logger.trace("Iterating collection elements and adding to parts...");
            ((Collection<?>) value).forEach((val) -> {
                logger.trace("Processing collection element: {} (type: {})", val, val.getClass().getSimpleName());
                if (val != null) {
                    List<String> valParts = Arrays.asList(val.toString().split("\\s+"));
                    logger.trace("Split collection element into parts: {}", valParts);
                    parts.addAll(valParts);
                }
            });
        } else {
            List<String> valParts = Arrays.asList(value.toString().split("\\s+"));
            logger.trace("Split value into parts: {}", valParts);
            parts.addAll(valParts);
        }

        logger.trace("Got {} parts:\n  {}", parts.size(), StringUtils.join(parts, "\n  "));
        return parts;
    }
}