ws

• Client.java
• RestService.java
• ReaderInterceptor.java
• WriterInterceptor.java
• context.xml
• pom.xml

Client.java

package com.training.jax_rs_2._reader_and_writer_interceptors.client;

import java.util.concurrent.ExecutorService;
import java.util.concurrent.Executors;
import javax.ws.rs.client.ClientBuilder;
import javax.ws.rs.client.WebTarget;
import javax.ws.rs.core.Response;

public class Client {

    public static void main(String[] args) {
        new Client().test();
    }

    private void test() {
        ExecutorService executorService = Executors.newSingleThreadExecutor();
        executorService.execute(new Runnable() {

            @Override
            public void run() {
                requestMethod();
            }
        });
        executorService.shutdown();
    }

    private void requestMethod() {
        javax.ws.rs.client.Client client = ClientBuilder.newClient();

        WebTarget webTarget = client.target("http://localhost:8080/").
                path("jax_rs_2.0_reader_and_writer_interceptors").
                path("name");
        Response response = webTarget.request().post(null);
        System.out.println("Response: " + response);
    }
}

RestService.java

package com.training.jax_rs_2._reader_and_writer_interceptors;

import javax.ws.rs.ApplicationPath;
import javax.ws.rs.GET;
import javax.ws.rs.POST;
import javax.ws.rs.Path;
import javax.ws.rs.core.Application;

@ApplicationPath("")
@Path("")
public class RestService extends Application {

    @GET
    public String test() {
        return "test";
    }

    @Path("{name}")
    @POST
    public String test2(String name) {
        return "Name: " + name;
    }
}

ReaderInterceptor.java

package com.training.jax_rs_2._reader_and_writer_interceptors;

import java.io.IOException;
import javax.ws.rs.WebApplicationException;
import javax.ws.rs.ext.Provider;
import javax.ws.rs.ext.ReaderInterceptorContext;

@Provider
public class ReaderInterceptor implements javax.ws.rs.ext.ReaderInterceptor {

    @Override
    public Object aroundReadFrom(ReaderInterceptorContext context) throws IOException, WebApplicationException {
        System.out.println("ReaderInterceptor");
        return context.proceed();
    }

}

WriterInterceptor.java

package com.training.jax_rs_2._reader_and_writer_interceptors;

import java.io.IOException;
import javax.ws.rs.WebApplicationException;
import javax.ws.rs.ext.Provider;
import javax.ws.rs.ext.WriterInterceptorContext;

@Provider
public class WriterInterceptor implements javax.ws.rs.ext.WriterInterceptor {

    @Override
    public void aroundWriteTo(WriterInterceptorContext writerInterceptorContext) throws IOException, WebApplicationException {
        System.out.println("WriterInterceptor");
        writerInterceptorContext.proceed();
    }

}

context.xml

<?xml version="1.0" encoding="UTF-8"?>
<Context antiJARLocking="true" path="/jax_rs_2.0_reader_and_writer_interceptors"/>

pom.xml

<?xml version="1.0" encoding="UTF-8"?>
<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/xsd/maven-4.0.0.xsd">
    <modelVersion>4.0.0</modelVersion>

    <artifactId>jax_rs_2.0_reader_and_writer_interceptors</artifactId>
    <groupId>com.training</groupId>
    <version>1.0</version>

    <packaging>war</packaging>

    <name>jax_rs_2.0_reader_and_writer_interceptors</name>

    <properties>
        <endorsed.dir>${project.build.directory}/endorsed</endorsed.dir>
        <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
        <jersey.version>2.19</jersey.version>
    </properties>

    <dependencies>
        <dependency>
            <groupId>org.glassfish.jersey.core</groupId>
            <artifactId>jersey-common</artifactId>
            <version>${jersey.version}</version>
        </dependency>
        <dependency>
            <groupId>org.glassfish.jersey.containers</groupId>
            <artifactId>jersey-container-servlet-core</artifactId>
            <version>${jersey.version}</version>
        </dependency>
        <dependency>
            <groupId>org.glassfish.jersey.containers</groupId>
            <artifactId>jersey-container-servlet</artifactId>
            <version>${jersey.version}</version>
        </dependency>
        <dependency>
            <groupId>javax</groupId>
            <artifactId>javaee-web-api</artifactId>
            <version>6.0</version>
            <scope>provided</scope>
        </dependency>
    </dependencies>

    <build>
        <plugins>
            <plugin>
                <groupId>org.apache.maven.plugins</groupId>
                <artifactId>maven-compiler-plugin</artifactId>
                <version>2.3.2</version>
                <configuration>
                    <source>1.6</source>
                    <target>1.6</target>
                    <compilerArguments>
                        <endorseddirs>${endorsed.dir}</endorseddirs>
                    </compilerArguments>
                </configuration>
            </plugin>
            <plugin>
                <groupId>org.apache.maven.plugins</groupId>
                <artifactId>maven-war-plugin</artifactId>
                <version>2.1.1</version>
                <configuration>
                    <failOnMissingWebXml>false</failOnMissingWebXml>
                </configuration>
            </plugin>
            <plugin>
                <groupId>org.apache.maven.plugins</groupId>
                <artifactId>maven-dependency-plugin</artifactId>
                <version>2.1</version>
                <executions>
                    <execution>
                        <phase>validate</phase>
                        <goals>
                            <goal>copy</goal>
                        </goals>
                        <configuration>
                            <outputDirectory>${endorsed.dir}</outputDirectory>
                            <silent>true</silent>
                            <artifactItems>
                                <artifactItem>
                                    <groupId>javax</groupId>
                                    <artifactId>javaee-endorsed-api</artifactId>
                                    <version>6.0</version>
                                    <type>jar</type>
                                </artifactItem>
                            </artifactItems>
                        </configuration>
                    </execution>
                </executions>
            </plugin>
        </plugins>
    </build>

</project>