Support cusotm google translation key

Author: Airsaid

src/main/java/com/airsaid/localization/translate/impl/googleapi/GoogleApiTranslationResult.java

@@ -0,0 +1,68 @@
+package com.airsaid.localization.translate.impl.googleapi;
+
+import com.airsaid.localization.translate.TranslationResult;
+import org.jetbrains.annotations.NotNull;
+
+import java.util.Arrays;
+
+/**
+ * @author airsaid
+ */
+public class GoogleApiTranslationResult implements TranslationResult {
+  public Data data;
+  public Error error;
+
+  public boolean isSuccess() {
+    return data != null && error == null;
+  }
+
+  @Override
+  public @NotNull String getTranslationResult() {
+    return data.translations[0].translatedText;
+  }
+
+  @Override
+  public String toString() {
+    return "GoogleApiTranslationResult{" +
+        "data=" + data +
+        ", error=" + error +
+        '}';
+  }
+
+  public static class Data {
+    public Translation[] translations;
+
+    @Override
+    public String toString() {
+      return "Data{" +
+          "translations=" + Arrays.toString(translations) +
+          '}';
+    }
+
+    public static class Translation {
+      public String translatedText;
+      public String detectedSourceLanguage;
+
+      @Override
+      public String toString() {
+        return "Translation{" +
+            "translatedText='" + translatedText + '\'' +
+            ", detectedSourceLanguage='" + detectedSourceLanguage + '\'' +
+            '}';
+      }
+    }
+  }
+
+  public static class Error {
+    public int code;
+    public String message;
+
+    @Override
+    public String toString() {
+      return "Error{" +
+          "code=" + code +
+          ", message='" + message + '\'' +
+          '}';
+    }
+  }
+}

src/main/java/com/airsaid/localization/translate/impl/googleapi/GoogleApiTranslator.java

@@ -0,0 +1,103 @@
+package com.airsaid.localization.translate.impl.googleapi;
+
+import com.airsaid.localization.translate.AbstractTranslator;
+import com.airsaid.localization.translate.TranslationException;
+import com.airsaid.localization.translate.lang.Lang;
+import com.airsaid.localization.translate.lang.Languages;
+import com.airsaid.localization.translate.util.GsonUtil;
+import com.intellij.openapi.util.Pair;
+import com.intellij.util.io.RequestBuilder;
+import icons.PluginIcons;
+import org.jetbrains.annotations.NotNull;
+import org.jetbrains.annotations.Nullable;
+
+import javax.swing.*;
+import java.util.ArrayList;
+import java.util.List;
+
+/**
+ * @author airsaid
+ */
+public class GoogleApiTranslator extends AbstractTranslator {
+  private static final String KEY = "GoogleApi";
+  private static final String HOST_URL = "https://translation.googleapis.com";
+  private static final String TRANSLATE_URL = HOST_URL.concat("/language/translate/v2");
+  private static final String APPLY_APP_ID_URL = "https://cloud.google.com/translate";
+
+  private List<Lang> supportedLanguages;
+
+  @Override
+  public @NotNull String getKey() {
+    return KEY;
+  }
+
+  @Override
+  public @NotNull String getName() {
+    return "Google (API)";
+  }
+
+  @Override
+  public @Nullable Icon getIcon() {
+    return PluginIcons.GOOGLE_ICON;
+  }
+
+  @Override
+  public @NotNull List<Lang> getSupportedLanguages() {
+    if (supportedLanguages == null) {
+      List<Lang> languages = Languages.getLanguages();
+      supportedLanguages = new ArrayList<>(104);
+      for (int i = 1; i <= 104; i++) {
+        supportedLanguages.add(languages.get(i));
+      }
+    }
+    return supportedLanguages;
+  }
+
+  @Override
+  public @NotNull String getRequestUrl(@NotNull Lang fromLang, @NotNull Lang toLang, @NotNull String text) {
+    return TRANSLATE_URL;
+  }
+
+  @Nullable
+  @Override
+  public String getApplyAppIdUrl() {
+    return APPLY_APP_ID_URL;
+  }
+
+  @Override
+  public boolean isNeedAppId() {
+    return false;
+  }
+
+  @Override
+  public @NotNull List<Pair<String, String>> getRequestParams(@NotNull Lang fromLang, @NotNull Lang toLang, @NotNull String text) {
+    List<Pair<String, String>> params = new ArrayList<>();
+    params.add(Pair.create("q", text));
+    params.add(Pair.create("target", toLang.getCode()));
+    params.add(Pair.create("key", getAppKey()));
+    params.add(Pair.create("format", "text"));
+    return params;
+  }
+
+  @Override
+  public void configureRequestBuilder(@NotNull RequestBuilder requestBuilder) {
+    requestBuilder.tuner(connection -> connection.setRequestProperty("Referer", HOST_URL));
+  }
+
+  @Override
+  public @NotNull String parsingResult(@NotNull Lang fromLang, @NotNull Lang toLang, @NotNull String text, @NotNull String resultText) {
+    LOG.info("parsingResult: " + resultText);
+    GoogleApiTranslationResult result = GsonUtil.getInstance().getGson().fromJson(resultText, GoogleApiTranslationResult.class);
+    if (result.isSuccess()) {
+      return result.getTranslationResult();
+    } else {
+      String message;
+      if (result.error != null) {
+        message = result.error.message.concat("(").concat(String.valueOf(result.error.code)).concat(")");
+      } else {
+        message = "Unknown error";
+      }
+      throw new TranslationException(fromLang, toLang, text, message);
+    }
+  }
+}

src/main/java/com/airsaid/localization/translate/services/TranslatorService.java

@@ -20,6 +20,7 @@
 import com.airsaid.localization.translate.AbstractTranslator;
 import com.airsaid.localization.translate.impl.baidu.BaiduTranslator;
 import com.airsaid.localization.translate.impl.google.GoogleTranslator;
+import com.airsaid.localization.translate.impl.googleapi.GoogleApiTranslator;
 import com.airsaid.localization.translate.impl.microsoft.MicrosoftTranslator;
 import com.airsaid.localization.translate.impl.youdao.YoudaoTranslator;
 import com.airsaid.localization.translate.lang.Lang;
@@ -56,6 +57,9 @@ public TranslatorService() {
     translators.put(googleTranslator.getKey(), googleTranslator);
     defaultTranslator = googleTranslator;
 
+    GoogleApiTranslator googleApiTranslator = new GoogleApiTranslator();
+    translators.put(googleApiTranslator.getKey(), googleApiTranslator);
+
     MicrosoftTranslator microsoftTranslator = new MicrosoftTranslator();
     translators.put(microsoftTranslator.getKey(), microsoftTranslator);