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noguavacreatetempdir.md

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Prefer Files#createTempDirectory()

org.openrewrite.java.migrate.guava.NoGuavaCreateTempDir

Replaces Guava Files#createTempDir() with Java Files#createTempDirectory(..). Transformations are limited to scopes throwing or catching java.io.IOException.

Tags

  • RSPEC-4738
  • guava

Source

GitHub, Issue Tracker, Maven Central

  • groupId: org.openrewrite.recipe
  • artifactId: rewrite-migrate-java
  • version: 2.0.1

Example

{% tabs %} {% tab title="A.java" %}

Before

{% code title="A.java" %}

import java.io.File;
import java.io.IOException;
import com.google.common.io.Files;

class A {
    void doSomething() throws IOException {
        File dir = Files.createTempDir();
        dir.createNewFile();
    }
    void doSomethingElse() throws Exception {
        File dir = Files.createTempDir();
        dir.createNewFile();
    }
}

{% endcode %}

After

{% code title="A.java" %}

import java.io.File;
import java.io.IOException;
import java.nio.file.Files;

class A {
    void doSomething() throws IOException {
        File dir = Files.createTempDirectory(null).toFile();
        dir.createNewFile();
    }
    void doSomethingElse() throws Exception {
        File dir = Files.createTempDirectory(null).toFile();
        dir.createNewFile();
    }
}

{% endcode %}

{% endtab %} {% tab title="Diff" %} {% code %}

--- A.java
+++ A.java
@@ -3,1 +3,1 @@
import java.io.File;
import java.io.IOException;
-import com.google.common.io.Files;
+import java.nio.file.Files;

@@ -7,1 +7,1 @@
class A {
    void doSomething() throws IOException {
-       File dir = Files.createTempDir();
+       File dir = Files.createTempDirectory(null).toFile();
        dir.createNewFile();
@@ -11,1 +11,1 @@
    }
    void doSomethingElse() throws Exception {
-       File dir = Files.createTempDir();
+       File dir = Files.createTempDirectory(null).toFile();
        dir.createNewFile();

{% endcode %} {% endtab %} {% endtabs %}

Usage

This recipe has no required configuration options. It can be activated by adding a dependency on org.openrewrite.recipe:rewrite-migrate-java:2.0.1 in your build file or by running a shell command (in which case no build changes are needed): {% tabs %} {% tab title="Gradle" %} {% code title="build.gradle" %}

plugins {
    id("org.openrewrite.rewrite") version("6.1.4")
}

rewrite {
    activeRecipe("org.openrewrite.java.migrate.guava.NoGuavaCreateTempDir")
}

repositories {
    mavenCentral()
}

dependencies {
    rewrite("org.openrewrite.recipe:rewrite-migrate-java:2.0.1")
}

{% endcode %} {% endtab %} {% tab title="Maven POM" %} {% code title="pom.xml" %}

<project>
  <build>
    <plugins>
      <plugin>
        <groupId>org.openrewrite.maven</groupId>
        <artifactId>rewrite-maven-plugin</artifactId>
        <version>5.2.4</version>
        <configuration>
          <activeRecipes>
            <recipe>org.openrewrite.java.migrate.guava.NoGuavaCreateTempDir</recipe>
          </activeRecipes>
        </configuration>
        <dependencies>
          <dependency>
            <groupId>org.openrewrite.recipe</groupId>
            <artifactId>rewrite-migrate-java</artifactId>
            <version>2.0.1</version>
          </dependency>
        </dependencies>
      </plugin>
    </plugins>
  </build>
</project>

{% endcode %} {% endtab %}

{% tab title="Maven Command Line" %} {% code title="shell" %} You will need to have Maven installed on your machine before you can run the following command.

mvn -U org.openrewrite.maven:rewrite-maven-plugin:run \
  -Drewrite.recipeArtifactCoordinates=org.openrewrite.recipe:rewrite-migrate-java:RELEASE \
  -Drewrite.activeRecipes=org.openrewrite.java.migrate.guava.NoGuavaCreateTempDir

{% endcode %} {% endtab %} {% endtabs %}

Contributors

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