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17 changed files with 63 additions and 318 deletions

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@@ -1,7 +1,7 @@
# Common ReST Client Library
This project provides a library for Spring and POJO-based REST client instantiation. It includes special classes for the Jersey JAXRS-based client frameworks.
This project provides a library for Spring and POJO-based REST client instantiation.
## Usage
@@ -15,7 +15,7 @@ First, you will need to include the library in your project.
<dependency>
<groupId>com.inteligr8</groupId>
<artifactId>common-rest-client</artifactId>
<version>...-jersey</version>
<version>...</version>
</dependency>
...
</dependencies>
@@ -23,65 +23,4 @@ First, you will need to include the library in your project.
</project>
```
### Spring Framework
#### Single Client
If you will only be declaring a single client in your Spring context, this is easy. You will just need two things. First, inject the single client into any of your Spring beans. You may do inject it into more than one. An example is below:
```java
@Component
public class ... {
@Autowired
@Qualifier("client.jersey") // may be optional
private Client client;
}
```
Next, you need to configure that client. You can do that by providing a single implementation of the `ClientConfiguration` (or `ClientJerseyConfiguration`) interface.
```java
@Configuration
public class ... implements ClientJerseyConfiguration {
...
}
```
#### Multiple Clients
If you will or may have multiple clients in your Spring context, there is an extra step. You will still need to define a `ClientConfiguration` for each. On top of that, you will need to create specialized implementations of each client. That special implementation will reference the configuration directly. An example is below.
```java
@Component("my.client")
public class MyClient extends ClientJerseyImpl {
@Autowired
public MyClient(MyClientConfiguration config) {
super(config);
}
}
```
You can then inject your client(s) into your Spring beans. Like the example below:
```java
@Component
public class ... {
@Autowired
private MyClient client;
@PostConstruct
public void init() {
MyJaxRsApi api = this.client.getApi(MyJaxRsApi.class);
}
}
### POJO
You do not have to use the Spring framework to use these classes. You can instantiate them directly. But you wil still need to create a `ClientConfiguration` as mentioned above.
```java
MyClientConfiguration config = new MyClientConfiguration();
...
ClientJerseyImpl client = new ClientJerseyImpl(config);
MyJaxRsApi api = client.getApi(MyJaxRsApi.class);
```
See the `cxf` and `jersey` branches for examples and more documentation.

82
pom.xml
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@@ -6,11 +6,11 @@
<groupId>com.inteligr8</groupId>
<artifactId>common-rest-client</artifactId>
<version>2.0.9-jersey</version>
<version>3.0.0</version>
<packaging>jar</packaging>
<name>ReST API Client for Java</name>
<description>A common library for building Jersey REST API clients</description>
<description>A common library for building REST API clients</description>
<url>https://bitbucket.org/inteligr8/common-rest-client</url>
<licenses>
@@ -40,16 +40,20 @@
<properties>
<project.build.sourceEncoding>utf-8</project.build.sourceEncoding>
<maven.compiler.source>8</maven.compiler.source>
<maven.compiler.target>8</maven.compiler.target>
<maven.compiler.source>11</maven.compiler.source>
<maven.compiler.target>11</maven.compiler.target>
<junit.version>5.7.2</junit.version>
<spring.version>5.3.27</spring.version>
<jackson.version>2.15.1</jackson.version>
<jersey.version>2.39.1</jersey.version>
<junit.version>5.10.0</junit.version>
<spring.version>6.0.19</spring.version>
<jackson.version>2.17.2</jackson.version>
</properties>
<dependencies>
<dependency>
<groupId>jakarta.annotation</groupId>
<artifactId>jakarta.annotation-api</artifactId>
<version>2.1.1</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-context</artifactId>
@@ -61,8 +65,8 @@
<version>${jackson.version}</version>
</dependency>
<dependency>
<groupId>com.fasterxml.jackson.jaxrs</groupId>
<artifactId>jackson-jaxrs-json-provider</artifactId>
<groupId>com.fasterxml.jackson.jakarta.rs</groupId>
<artifactId>jackson-jakarta-rs-json-provider</artifactId>
<version>${jackson.version}</version>
</dependency>
<dependency>
@@ -78,12 +82,12 @@
<dependency>
<groupId>org.slf4j</groupId>
<artifactId>slf4j-api</artifactId>
<version>1.7.36</version>
<version>2.0.13</version>
</dependency>
<dependency>
<groupId>jakarta.ws.rs</groupId>
<artifactId>jakarta.ws.rs-api</artifactId>
<version>2.1.6</version>
<version>3.1.0</version>
</dependency>
<dependency>
<groupId>org.junit.jupiter</groupId>
@@ -103,64 +107,10 @@
<version>4.5.14</version>
<scope>test</scope>
</dependency>
<!-- Jersey libraries -->
<dependency>
<groupId>org.glassfish.jersey.ext</groupId>
<artifactId>jersey-proxy-client</artifactId>
<version>${jersey.version}</version>
</dependency>
<dependency>
<groupId>org.glassfish.jersey.core</groupId>
<artifactId>jersey-client</artifactId>
<version>${jersey.version}</version>
</dependency>
<dependency>
<groupId>org.glassfish.jersey.media</groupId>
<artifactId>jersey-media-multipart</artifactId>
<version>${jersey.version}</version>
</dependency>
<dependency>
<groupId>org.glassfish.jersey.inject</groupId>
<artifactId>jersey-hk2</artifactId>
<version>${jersey.version}</version>
<scope>test</scope>
</dependency>
<dependency>
<groupId>org.glassfish.jersey.media</groupId>
<artifactId>jersey-media-json-jackson</artifactId>
<version>${jersey.version}</version>
<scope>test</scope>
</dependency>
</dependencies>
<build>
<plugins>
<plugin>
<groupId>org.codehaus.mojo</groupId>
<artifactId>build-helper-maven-plugin</artifactId>
<version>3.4.0</version>
<executions>
<execution>
<id>add-jaxrs-src</id>
<goals><goal>add-source</goal></goals>
<configuration>
<sources>
<source>src/main/jersey</source>
</sources>
</configuration>
</execution>
<execution>
<id>add-test-src</id>
<goals><goal>add-test-source</goal></goals>
<configuration>
<sources>
<source>src/test/jersey</source>
</sources>
</configuration>
</execution>
</executions>
</plugin>
<plugin>
<artifactId>maven-surefire-plugin</artifactId>
<version>3.1.0</version>

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@@ -14,7 +14,7 @@
*/
package com.inteligr8.rs;
import javax.ws.rs.client.ClientRequestFilter;
import jakarta.ws.rs.client.ClientRequestFilter;
/**
* This is a marker that allows the developer to segregate, restrict, or limit

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@@ -17,8 +17,8 @@ package com.inteligr8.rs;
import java.io.UnsupportedEncodingException;
import java.util.Base64;
import javax.ws.rs.client.ClientRequestContext;
import javax.ws.rs.core.HttpHeaders;
import jakarta.ws.rs.client.ClientRequestContext;
import jakarta.ws.rs.core.HttpHeaders;
import org.apache.commons.lang3.StringUtils;

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@@ -14,8 +14,8 @@
*/
package com.inteligr8.rs;
import javax.ws.rs.client.ClientRequestContext;
import javax.ws.rs.core.HttpHeaders;
import jakarta.ws.rs.client.ClientRequestContext;
import jakarta.ws.rs.core.HttpHeaders;
/**
* This class implements a simple long living or proxied token-based

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@@ -16,14 +16,14 @@ package com.inteligr8.rs;
import java.util.concurrent.TimeUnit;
import javax.ws.rs.client.ClientBuilder;
import javax.ws.rs.client.WebTarget;
import jakarta.ws.rs.client.ClientBuilder;
import jakarta.ws.rs.client.WebTarget;
import com.fasterxml.jackson.databind.DeserializationFeature;
import com.fasterxml.jackson.databind.ObjectMapper;
import com.fasterxml.jackson.databind.SerializationFeature;
import com.fasterxml.jackson.datatype.jsr310.JavaTimeModule;
import com.fasterxml.jackson.jaxrs.json.JacksonJaxbJsonProvider;
import com.fasterxml.jackson.jakarta.rs.json.JacksonJsonProvider;
/**
* A class that provides pre-configured JAX-RS Client &amp; WebTarget objects.
@@ -33,7 +33,7 @@ import com.fasterxml.jackson.jaxrs.json.JacksonJaxbJsonProvider;
public abstract class Client {
private final Object sync = new Object();
private javax.ws.rs.client.Client client;
private jakarta.ws.rs.client.Client client;
/**
* @return The client configuration.
@@ -43,7 +43,7 @@ public abstract class Client {
/**
* @return A pre-configured JAX-RS client (no URL) with configured authorization.
*/
public final javax.ws.rs.client.Client getClient() {
public final jakarta.ws.rs.client.Client getClient() {
synchronized (this.sync) {
if (this.client == null)
this.client = this.buildClient((AuthorizationFilter)null);
@@ -56,7 +56,7 @@ public abstract class Client {
* @param authFilter A dynamic authorization filter.
* @return A pre-configured JAX-RS client (no URL) with the specified authorization.
*/
public javax.ws.rs.client.Client getClient(AuthorizationFilter authFilter) {
public jakarta.ws.rs.client.Client getClient(AuthorizationFilter authFilter) {
if (authFilter == null) {
return this.getClient();
} else {
@@ -68,12 +68,12 @@ public abstract class Client {
* @param authFilter A dynamic authorization filter.
* @return A pre-configured JAX-RS client (no URL) with the specified authorization.
*/
public final javax.ws.rs.client.Client buildClient(AuthorizationFilter authFilter) {
public final jakarta.ws.rs.client.Client buildClient(AuthorizationFilter authFilter) {
ObjectMapper om = new ObjectMapper();
om.registerModules(new JavaTimeModule());
this.getConfig().configureJacksonMapper(om);
JacksonJaxbJsonProvider provider = new JacksonJaxbJsonProvider(om, JacksonJaxbJsonProvider.DEFAULT_ANNOTATIONS);
JacksonJsonProvider provider = new JacksonJsonProvider(om, JacksonJsonProvider.BASIC_ANNOTATIONS);
this.getConfig().configureJacksonProvider(provider);
if (this.getConfig().isWrapRootValueEnabled())

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@@ -16,10 +16,10 @@ package com.inteligr8.rs;
import java.net.URI;
import javax.ws.rs.client.ClientBuilder;
import com.fasterxml.jackson.databind.ObjectMapper;
import com.fasterxml.jackson.jaxrs.json.JacksonJaxbJsonProvider;
import com.fasterxml.jackson.jakarta.rs.json.JacksonJsonProvider;
import jakarta.ws.rs.client.ClientBuilder;
/**
* This interface defines the configurable parameters of the clients; primarily
@@ -151,9 +151,9 @@ public interface ClientConfiguration {
}
/**
* @param provider A Jackson JAX-RS provider to configure.
* @param provider A Jackson Jakarta RS provider to configure.
*/
default void configureJacksonProvider(JacksonJaxbJsonProvider provider) {
default void configureJacksonProvider(JacksonJsonProvider provider) {
}

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@@ -14,7 +14,7 @@
*/
package com.inteligr8.rs;
import javax.ws.rs.client.ClientRequestContext;
import jakarta.ws.rs.client.ClientRequestContext;
import org.apache.commons.lang3.StringUtils;

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@@ -14,13 +14,11 @@
*/
package com.inteligr8.rs;
import javax.annotation.PostConstruct;
import javax.ws.rs.client.ClientBuilder;
import jakarta.annotation.PostConstruct;
import jakarta.ws.rs.client.ClientBuilder;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Component;
/**
* A class that provides pre-configured JAX-RS Client &amp; WebTarget objects
@@ -28,7 +26,6 @@ import org.springframework.stereotype.Component;
*
* @author brian@inteligr8.com
*/
@Component("client.jaxrs")
public class ClientImpl extends Client {
private final Logger logger = LoggerFactory.getLogger(ClientImpl.class);
@@ -39,7 +36,6 @@ public class ClientImpl extends Client {
* This constructor is for Spring or POJO use.
* @param config The client configuration.
*/
@Autowired
public ClientImpl(ClientConfiguration config) {
this.config = config;
}

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@@ -14,8 +14,8 @@
*/
package com.inteligr8.rs;
import javax.ws.rs.client.ClientRequestContext;
import javax.ws.rs.core.HttpHeaders;
import jakarta.ws.rs.client.ClientRequestContext;
import jakarta.ws.rs.core.HttpHeaders;
/**
* This class implements a proxied or forwarded authorization header based

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@@ -16,12 +16,12 @@ package com.inteligr8.rs;
import java.io.IOException;
import javax.ws.rs.client.ClientRequestContext;
import javax.ws.rs.client.ClientRequestFilter;
import javax.ws.rs.client.ClientResponseContext;
import javax.ws.rs.client.ClientResponseFilter;
import javax.ws.rs.core.Form;
import javax.ws.rs.core.MediaType;
import jakarta.ws.rs.client.ClientRequestContext;
import jakarta.ws.rs.client.ClientRequestFilter;
import jakarta.ws.rs.client.ClientResponseContext;
import jakarta.ws.rs.client.ClientResponseFilter;
import jakarta.ws.rs.core.Form;
import jakarta.ws.rs.core.MediaType;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

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@@ -16,7 +16,7 @@ package com.inteligr8.rs;
import java.net.URI;
import javax.ws.rs.core.Form;
import jakarta.ws.rs.core.Form;
import org.apache.commons.lang3.StringUtils;
import org.slf4j.Logger;

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@@ -16,22 +16,22 @@ package com.inteligr8.rs;
import java.util.Map;
import javax.ws.rs.WebApplicationException;
import javax.ws.rs.client.Client;
import javax.ws.rs.client.ClientBuilder;
import javax.ws.rs.client.ClientRequestContext;
import javax.ws.rs.client.Entity;
import javax.ws.rs.client.WebTarget;
import javax.ws.rs.core.Form;
import javax.ws.rs.core.HttpHeaders;
import javax.ws.rs.core.Response;
import javax.ws.rs.core.Response.Status.Family;
import jakarta.ws.rs.WebApplicationException;
import jakarta.ws.rs.client.Client;
import jakarta.ws.rs.client.ClientBuilder;
import jakarta.ws.rs.client.ClientRequestContext;
import jakarta.ws.rs.client.Entity;
import jakarta.ws.rs.client.WebTarget;
import jakarta.ws.rs.core.Form;
import jakarta.ws.rs.core.HttpHeaders;
import jakarta.ws.rs.core.Response;
import jakarta.ws.rs.core.Response.Status.Family;
import org.apache.commons.lang3.StringUtils;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import com.fasterxml.jackson.jaxrs.json.JacksonJaxbJsonProvider;
import com.fasterxml.jackson.jakarta.rs.json.JacksonJsonProvider;
/**
* This class is the base for implementations of OAuth authorization flows.
@@ -159,7 +159,7 @@ public abstract class OAuthAuthorizationFilter implements AuthorizationFilter {
Entity<Form> entity = Entity.form(form);
Client client = ClientBuilder.newBuilder()
.register(new JacksonJaxbJsonProvider())
.register(new JacksonJsonProvider())
.build();
WebTarget target = client.target(this.tokenUrl);

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@@ -14,7 +14,7 @@
*/
package com.inteligr8.rs;
import javax.ws.rs.core.Form;
import jakarta.ws.rs.core.Form;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

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@@ -14,7 +14,7 @@
*/
package com.inteligr8.rs;
import javax.ws.rs.core.Form;
import jakarta.ws.rs.core.Form;
import org.apache.commons.lang3.StringUtils;
import org.slf4j.Logger;

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@@ -1,35 +0,0 @@
/*
* This program is free software: you can redistribute it and/or modify it
* under the terms of the GNU Lesser General Public License as published by
* the Free Software Foundation, either version 3 of the License, or (at your
* option) any later version.
*
* This program is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
* more details.
*
* You should have received a copy of the GNU General Public License along
* with this program. If not, see <https://www.gnu.org/licenses/>.
*/
package com.inteligr8.rs;
/**
* This interface defines additional configurations specific to the Jersey
* JAX-RS library and its nuances.
*
* @author brian@inteligr8.com
*/
public interface ClientJerseyConfiguration extends ClientConfiguration {
/**
* Jersey is automatically strict in its adherence to the ReST API
* specifications. It requires a body to PUT calls by default.
*
* @return true to require body in PUT calls; false to make it optional
*/
default boolean isPutBodyRequired() {
return true;
}
}

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@@ -1,105 +0,0 @@
/*
* This program is free software: you can redistribute it and/or modify it
* under the terms of the GNU Lesser General Public License as published by
* the Free Software Foundation, either version 3 of the License, or (at your
* option) any later version.
*
* This program is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
* more details.
*
* You should have received a copy of the GNU General Public License along
* with this program. If not, see <https://www.gnu.org/licenses/>.
*/
package com.inteligr8.rs;
import javax.annotation.PostConstruct;
import javax.ws.rs.client.ClientBuilder;
import javax.ws.rs.ext.RuntimeDelegate;
import org.glassfish.jersey.client.ClientProperties;
import org.glassfish.jersey.client.proxy.WebResourceFactory;
import org.glassfish.jersey.internal.RuntimeDelegateImpl;
import org.glassfish.jersey.media.multipart.MultiPartFeature;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Component;
/**
* A class that provides pre-configured JAX-RS Client &amp; WebTarget objects
* for Jersey.
*
* @author brian@inteligr8.com
*/
@Component("client.jersey")
public class ClientJerseyImpl extends Client {
private final Logger logger = LoggerFactory.getLogger(ClientJerseyImpl.class);
private ClientJerseyConfiguration config;
/**
* This constructor is for Spring or POJO use.
* @param config The client configuration.
*/
@Autowired
public ClientJerseyImpl(ClientJerseyConfiguration config) {
this.config = config;
}
/**
* This method registers the Jersey library as the default provider for the
* JAX-RS specification.
*/
@PostConstruct
public void register() {
if (RuntimeDelegate.getInstance() == null) {
this.logger.info("Setting JAX-RS runtime delegate to the Jersey library");
RuntimeDelegate.setInstance(new RuntimeDelegateImpl());
} else if (RuntimeDelegate.getInstance() instanceof RuntimeDelegateImpl) {
this.logger.info("JAX-RS runtime delegate already the Jersey library");
} else {
this.logger.warn("Setting JAX-RS runtime delegate to the Jersey library; was: " + RuntimeDelegate.getInstance().getClass().getName());
RuntimeDelegate.setInstance(new RuntimeDelegateImpl());
}
if (this.logger.isInfoEnabled())
this.logger.info("API Base URL: " + this.getConfig().getBaseUrl());
}
/**
* @param clientBuilder A client builder.
*/
@Override
public void buildClient(ClientBuilder clientBuilder) {
clientBuilder.register(MultiPartFeature.class);
if (!this.getConfig().isPutBodyRequired()) {
// allow PUT operations without body data
clientBuilder.property(ClientProperties.SUPPRESS_HTTP_COMPLIANCE_VALIDATION, true);
}
}
/**
* @return The client configuration.
*/
public ClientJerseyConfiguration getConfig() {
return this.config;
}
/**
* This method retrieves a JAX-RS implementation of the specified API with
* the specified authorization.
*
* @param authFilter A dynamic authorization filter.
* @param apiClass A JAX-RS annotation API class.
* @return An instance of the API class.
*/
@Override
public <T> T getApi(AuthorizationFilter authFilter, Class<T> apiClass) {
return WebResourceFactory.newResource(apiClass, this.getTarget(authFilter));
}
}