Add support for Oracle JDK (#401)

src/distributions/distribution-factory.ts

@@ -7,6 +7,7 @@ import { TemurinDistribution, TemurinImplementation } from './temurin/installer'
 import { LibericaDistributions } from './liberica/installer';
 import { MicrosoftDistributions } from './microsoft/installer';
 import { CorrettoDistribution } from './corretto/installer';
+import { OracleDistribution } from './oracle/installer';
 
 enum JavaDistribution {
   Adopt = 'adopt',
@@ -17,7 +18,8 @@ enum JavaDistribution {
   Liberica = 'liberica',
   JdkFile = 'jdkfile',
   Microsoft = 'microsoft',
-  Corretto = 'corretto'
+  Corretto = 'corretto',
+  Oracle = 'oracle'
 }
 
 export function getJavaDistribution(
@@ -43,6 +45,8 @@ export function getJavaDistribution(
       return new MicrosoftDistributions(installerOptions);
     case JavaDistribution.Corretto:
       return new CorrettoDistribution(installerOptions);
+    case JavaDistribution.Oracle:
+      return new OracleDistribution(installerOptions);
     default:
       return null;
   }

src/distributions/oracle/installer.ts

@@ -0,0 +1,103 @@
+import * as core from '@actions/core';
+import * as tc from '@actions/tool-cache';
+
+import fs from 'fs';
+import path from 'path';
+
+import { JavaBase } from '../base-installer';
+import { JavaDownloadRelease, JavaInstallerOptions, JavaInstallerResults } from '../base-models';
+import { extractJdkFile, getDownloadArchiveExtension } from '../../util';
+import { HttpCodes } from '@actions/http-client';
+
+const ORACLE_DL_BASE = 'https://download.oracle.com/java';
+
+export class OracleDistribution extends JavaBase {
+  constructor(installerOptions: JavaInstallerOptions) {
+    super('Oracle', installerOptions);
+  }
+
+  protected async downloadTool(javaRelease: JavaDownloadRelease): Promise<JavaInstallerResults> {
+    core.info(
+      `Downloading Java ${javaRelease.version} (${this.distribution}) from ${javaRelease.url} ...`
+    );
+    const javaArchivePath = await tc.downloadTool(javaRelease.url);
+
+    core.info(`Extracting Java archive...`);
+    let extension = getDownloadArchiveExtension();
+
+    let extractedJavaPath = await extractJdkFile(javaArchivePath, extension);
+
+    const archiveName = fs.readdirSync(extractedJavaPath)[0];
+    const archivePath = path.join(extractedJavaPath, archiveName);
+    const version = this.getToolcacheVersionName(javaRelease.version);
+
+    let javaPath = await tc.cacheDir(
+      archivePath,
+      this.toolcacheFolderName,
+      version,
+      this.architecture
+    );
+
+    return { version: javaRelease.version, path: javaPath };
+  }
+
+  protected async findPackageForDownload(range: string): Promise<JavaDownloadRelease> {
+    const arch = this.distributionArchitecture();
+    if (arch !== 'x64' && arch !== 'aarch64') {
+      throw new Error(`Unsupported architecture: ${this.architecture}`);
+    }
+
+    if (!this.stable) {
+      throw new Error('Early access versions are not supported');
+    }
+
+    if (this.packageType !== 'jdk') {
+      throw new Error('Oracle JDK provides only the `jdk` package type');
+    }
+
+    const platform = this.getPlatform();
+    const extension = getDownloadArchiveExtension();
+    let major;
+    let fileUrl;
+    if (range.includes('.')) {
+      major = range.split('.')[0];
+      fileUrl = `${ORACLE_DL_BASE}/${major}/archive/jdk-${range}_${platform}-${arch}_bin.${extension}`;
+    } else {
+      major = range;
+      fileUrl = `${ORACLE_DL_BASE}/${range}/latest/jdk-${range}_${platform}-${arch}_bin.${extension}`;
+    }
+
+    if (parseInt(major) < 17) {
+      throw new Error('Oracle JDK is only supported for JDK 17 and later');
+    }
+
+    const response = await this.http.head(fileUrl);
+
+    if (response.message.statusCode === HttpCodes.NotFound) {
+      throw new Error(`Could not find Oracle JDK for SemVer ${range}`);
+    }
+
+    if (response.message.statusCode !== HttpCodes.OK) {
+      throw new Error(
+        `Http request for Oracle JDK failed with status code: ${response.message.statusCode}`
+      );
+    }
+
+    return { url: fileUrl, version: range };
+  }
+
+  public getPlatform(platform: NodeJS.Platform = process.platform): OsVersions {
+    switch (platform) {
+      case 'darwin':
+        return 'macos';
+      case 'win32':
+        return 'windows';
+      case 'linux':
+        return 'linux';
+      default:
+        throw new Error(
+          `Platform '${platform}' is not supported. Supported platforms: 'linux', 'macos', 'windows'`
+        );
+    }
+  }
+}

src/distributions/oracle/models.ts

@@ -0,0 +1 @@
+export type OsVersions = 'linux' | 'macos' | 'windows';