Java idiomatic client for Natural Language.
🚌 In October 2022, this library has moved to
google-cloud-java/java-language.
This repository will be archived in the future.
Future releases will appear in the new repository (https://github.com/googleapis/google-cloud-java/releases).
The Maven artifact coordinates (com.google.cloud:google-cloud-language) remain the same.
If you are using Maven with BOM, add this to your pom.xml file:
<dependencyManagement>
<dependencies>
<dependency>
<groupId>com.google.cloud</groupId>
<artifactId>libraries-bom</artifactId>
<version>26.11.0</version>
<type>pom</type>
<scope>import</scope>
</dependency>
</dependencies>
</dependencyManagement>
<dependencies>
<dependency>
<groupId>com.google.cloud</groupId>
<artifactId>google-cloud-language</artifactId>
</dependency>
If you are using Maven without BOM, add this to your dependencies:
<dependency>
<groupId>com.google.cloud</groupId>
<artifactId>google-cloud-language</artifactId>
<version>2.4.1</version>
</dependency>
If you are using Gradle 5.x or later, add this to your dependencies:
implementation platform('com.google.cloud:libraries-bom:26.11.0')
implementation 'com.google.cloud:google-cloud-language'If you are using Gradle without BOM, add this to your dependencies:
implementation 'com.google.cloud:google-cloud-language:2.14.0'If you are using SBT, add this to your dependencies:
libraryDependencies += "com.google.cloud" % "google-cloud-language" % "2.14.0"See the Authentication section in the base directory's README.
The client application making API calls must be granted authorization scopes required for the desired Natural Language APIs, and the authenticated principal must have the IAM role(s) required to access GCP resources using the Natural Language API calls.
You will need a Google Cloud Platform Console project with the Natural Language API enabled.
You will need to enable billing to use Google Natural Language.
Follow these instructions to get your project set up. You will also need to set up the local development environment by
installing the Google Cloud Command Line Interface and running the following commands in command line:
gcloud auth login and gcloud config set project [YOUR PROJECT ID].
You'll need to obtain the google-cloud-language library. See the Quickstart section
to add google-cloud-language as a dependency in your code.
Natural Language provides natural language understanding technologies to developers, including sentiment analysis, entity analysis, entity sentiment analysis, content classification, and syntax analysis. This API is part of the larger Cloud Machine Learning API family.
See the Natural Language client library docs to learn how to use this Natural Language Client Library.
With Cloud Natural Language, you can analyze the sentiment of text. Add the following imports at the top of your file:
import com.google.cloud.language.v1.LanguageServiceClient;
import com.google.cloud.language.v1.Document;
import com.google.cloud.language.v1.Document.Type;
import com.google.cloud.language.v1.Sentiment;Then, to analyze the sentiment of some text, use the following code:
// Instantiates a client
LanguageServiceClient language = LanguageServiceClient.create();
// The text to analyze
String[] texts = {"I love this!", "I hate this!"};
for (String text : texts) {
Document doc = Document.newBuilder().setContent(text).setType(Type.PLAIN_TEXT).build();
// Detects the sentiment of the text
Sentiment sentiment = language.analyzeSentiment(doc).getDocumentSentiment();
System.out.printf("Text: \"%s\"%n", text);
System.out.printf(
"Sentiment: score = %s, magnitude = %s%n",
sentiment.getScore(), sentiment.getMagnitude());
}In AnalyzeSentiment.java we put the code shown above into a complete program.
Samples are in the samples/ directory.
| Sample | Source Code | Try it |
|---|---|---|
| Analyze Beta | source code |  |
To get help, follow the instructions in the shared Troubleshooting document.
Natural Language uses gRPC for the transport layer.
Java 8 or above is required for using this client.
Google's Java client libraries, Google Cloud Client Libraries and Google Cloud API Libraries, follow the Oracle Java SE support roadmap (see the Oracle Java SE Product Releases section).
In general, new feature development occurs with support for the lowest Java LTS version covered by Oracle's Premier Support (which typically lasts 5 years from initial General Availability). If the minimum required JVM for a given library is changed, it is accompanied by a semver major release.
Java 11 and (in September 2021) Java 17 are the best choices for new development.
Google tests its client libraries with all current LTS versions covered by Oracle's Extended Support (which typically lasts 8 years from initial General Availability).
Google's client libraries support legacy versions of Java runtimes with long term stable libraries that don't receive feature updates on a best efforts basis as it may not be possible to backport all patches.
Google provides updates on a best efforts basis to apps that continue to use Java 7, though apps might need to upgrade to current versions of the library that supports their JVM.
The latest versions and the supported Java versions are identified on
the individual GitHub repository github.com/GoogleAPIs/java-SERVICENAME
and on google-cloud-java.
This library follows Semantic Versioning.
Contributions to this library are always welcome and highly encouraged.
See CONTRIBUTING for more information how to get started.
Please note that this project is released with a Contributor Code of Conduct. By participating in this project you agree to abide by its terms. See Code of Conduct for more information.
Apache 2.0 - See LICENSE for more information.
| Java Version | Status |
|---|---|
| Java 8 |  |
| Java 8 OSX |  |
| Java 8 Windows |  |
| Java 11 |  |
Java is a registered trademark of Oracle and/or its affiliates.