JAX-WS files

• FileService.java
• FileServiceImpl.java
• Id.java
• pom.xml

FileService.java

package com.training.ws;

import java.io.FileNotFoundException;
import java.io.IOException;
import java.util.Collection;

import javax.jws.WebMethod;
import javax.jws.WebService;
import javax.xml.ws.soap.MTOM;

@MTOM
@WebService
public interface FilesService {

    @WebMethod
    Collection<Id> getFileIds();

    @WebMethod
    byte[] downloadFile(String id) throws IOException;

    @WebMethod
    String uploadFile(byte[] bytes) throws FileNotFoundException, IOException;

    @WebMethod
    void deleteFile(String id);
}

FileServiceImpl.java

package com.training.ws;

import java.io.BufferedReader;
import java.io.File;
import java.io.FileInputStream;
import java.io.FileNotFoundException;
import java.io.FileOutputStream;
import java.io.FileReader;
import java.io.IOException;
import java.util.Collection;
import java.util.HashMap;
import java.util.Map;

import javax.jws.WebService;
import javax.xml.ws.soap.MTOM;

import com.google.common.base.Function;
import com.google.common.collect.Collections2;

@MTOM
@WebService(endpointInterface = "com.training.ws.FilesService", serviceName = "FilesService")
public class FilesServiceImpl implements FilesService {

    private static int lastId = 0;
    private Map<String, File> files = new HashMap<String, File>();

    public Collection<Id> getFileIds() {
        return transformToIdObject();
    }

    public byte[] downloadFile(String id) throws IOException {
        File file = files.get(id);

        return readContentIntoBytes(file);
    }

    public String uploadFile(byte[] bytes) throws FileNotFoundException,
            IOException {
        String generatedId = String.valueOf(++lastId);
        System.out.println("read file: " + generatedId);

        File file = File.createTempFile("myfile", ".txt");
        FileOutputStream fileOutputStream = new FileOutputStream(file);
        fileOutputStream.write(bytes);
        fileOutputStream.close();

        files.put(generatedId, file);
        readFile(file);
        return generatedId;
    }

    public void deleteFile(String id) {
        files.remove(id);
    }

    private Collection<Id> transformToIdObject() {
        return Collections2.transform(files.keySet(),
                new Function<String, Id>() {

                    public Id apply(String id) {
                        return new Id(id);
                    }
                });
    }

    private void readFile(File file) throws FileNotFoundException, IOException {
        FileReader fileReader = new FileReader(file);
        BufferedReader br = new BufferedReader(fileReader);
        String s;
        while ((s = br.readLine()) != null) {
            System.out.println(s);
        }
        fileReader.close();
    }

    private byte[] readContentIntoBytes(File file) throws IOException {
        byte[] bFile = new byte[(int) file.length()];
        FileInputStream fileInputStream = new FileInputStream(file);
        fileInputStream.read(bFile);
        fileInputStream.close();
        return bFile;
    }
}

Id.java

package com.training.ws;

import javax.xml.bind.annotation.XmlRootElement;

@XmlRootElement
public class Id {

    private String id;

    public Id() {
    }

    public Id(String id) {
        this.id = id;
    }

    public String getId() {
        return id;
    }

    public void setId(String id) {
        this.id = id;
    }

}

pom.xml

<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
    xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/maven-v4_0_0.xsd">
    <modelVersion>4.0.0</modelVersion>

    <groupId>com.training</groupId>
    <artifactId>jax_ws_files</artifactId>
    <packaging>war</packaging>
    <version>1.0</version>

    <build>
        <plugins>
            <plugin>
                <artifactId>maven-war-plugin</artifactId>
                <version>2.4</version>
                <configuration>
                    <failOnMissingWebXml>false</failOnMissingWebXml>
                </configuration>
            </plugin>
        </plugins>
    </build>

    <dependencies>
        <dependency>
            <groupId>javax</groupId>
            <artifactId>javaee-web-api</artifactId>
            <version>6.0</version>
            <scope>provided</scope>
        </dependency>
        <dependency>
            <groupId>com.google.guava</groupId>
            <artifactId>guava</artifactId>
            <version>18.0</version>
        </dependency>
    </dependencies>

</project>