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/*
Copyright (c) 2015 Red Hat, Inc.
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 org.ovirt.engine.sdk4.internal.services;

import java.io.IOException;
import java.math.BigInteger;
import java.net.URISyntaxException;
import java.util.List;
import org.apache.http.HttpResponse;
import org.apache.http.client.methods.HttpGet;
import org.apache.http.client.utils.URIBuilder;
import org.apache.http.util.EntityUtils;
import org.ovirt.api.metamodel.runtime.xml.XmlReader;
import org.ovirt.api.metamodel.runtime.xml.XmlWriter;
import org.ovirt.engine.sdk4.Error;
import org.ovirt.engine.sdk4.Service;
import org.ovirt.engine.sdk4.internal.HttpConnection;
import org.ovirt.engine.sdk4.internal.xml.XmlFileReader;
import org.ovirt.engine.sdk4.services.FileService;
import org.ovirt.engine.sdk4.services.FilesService;
import org.ovirt.engine.sdk4.types.File;

public class FilesServiceImpl extends ServiceImpl implements FilesService {
    
    public FilesServiceImpl(HttpConnection connection, String path) {
        super(connection, path);
    }
    
    private class ListRequestImpl implements ListRequest {
        private Boolean caseSensitive;
        public ListRequest caseSensitive(Boolean caseSensitive) {
            this.caseSensitive = caseSensitive;
            return this;
        }
        
        private BigInteger max;
        public ListRequest max(BigInteger max) {
            this.max = max;
            return this;
        }
        
        public ListRequest max(Integer max) {
            this.max = BigInteger.valueOf(max);
            return this;
        }
        
        public ListRequest max(Long max) {
            this.max = BigInteger.valueOf(max);
            return this;
        }
        
        private String search;
        public ListRequest search(String search) {
            this.search = search;
            return this;
        }
        
        public ListResponse send() {
            HttpGet request = null;
            try {
                URIBuilder uriBuilder = new URIBuilder(getConnection().getUrl() + getPath());
                if (caseSensitive != null) {
                    uriBuilder.addParameter("case_sensitive", XmlWriter.renderBoolean(caseSensitive));
                }
                if (max != null) {
                    uriBuilder.addParameter("max", XmlWriter.renderInteger(max));
                }
                if (search != null) {
                    uriBuilder.addParameter("search", XmlWriter.renderString(search));
                }
                request = new HttpGet(uriBuilder.build());
            }
            catch (URISyntaxException ex) {
                throw new Error("Failed to build URL", ex);
            }
            
            HttpResponse response = getConnection().send(request);
            if (
              response.getStatusLine().getStatusCode() == 200
            ) {
                try (
                  XmlReader reader = new XmlReader(response.getEntity().getContent())
                ) {
                    return new ListResponseImpl(XmlFileReader.readMany(reader));
                }
                catch (IOException ex) {
                    throw new Error("Failed to read response", ex);
                }
                finally {
                    EntityUtils.consumeQuietly(response.getEntity());
                }
            }
            else {
                checkFault(response);
                return new ListResponseImpl(null);
            }
        }
        
    }
    
    private class ListResponseImpl implements ListResponse {
        private List file;
        
        public ListResponseImpl(List file) {
            this.file = file;
        }
        
        public List file() {
            return file;
        }
        
    }
    
    public ListRequest list() {
        return new ListRequestImpl();
    }
    
    public FileService fileService(String id) {
        return new FileServiceImpl(getConnection(), getPath() + "/" + id);
    }
    
    public Service service(String path) {
        if (path == null) {
            return this;
        }
        
        int index = path.indexOf('/');
        if (index == -1) {
            return fileService(path);
        }
        return fileService(path.substring(0, index)).service(path.substring(index + 1));
    }
    
    public String toString() {
        return "FilesService:" + getPath();
    }
    
}