guru.nidi.google.sheet.SimpleCredential.java Source code

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Here is the source code for guru.nidi.google.sheet.SimpleCredential.java

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/*
 * Copyright (C) 2015 Stefan Niederhauser (nidin@gmx.ch)
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *         http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package guru.nidi.google.sheet;

import com.google.api.client.auth.oauth2.Credential;
import com.google.api.client.googleapis.auth.oauth2.GoogleCredential;
import com.google.api.client.googleapis.javanet.GoogleNetHttpTransport;
import com.google.api.client.http.HttpTransport;
import com.google.api.client.json.JsonFactory;
import com.google.api.client.json.jackson2.JacksonFactory;

import java.io.File;
import java.io.IOException;
import java.security.GeneralSecurityException;
import java.util.Arrays;

/**
 *
 */
public class SimpleCredential {
    private static final String SCOPE_SHEET = "https://spreadsheets.google.com/feeds/";
    private static final String SCOPE_DRIVE = "https://www.googleapis.com/auth/drive";

    final Credential credential;
    final HttpTransport httpTransport;
    final JsonFactory jsonFactory;

    public SimpleCredential() throws GeneralSecurityException, IOException {
        this(null, null);
    }

    public SimpleCredential(String serviceAccountEmail, File serviceAccountPrivateKeyFileP12)
            throws GeneralSecurityException, IOException {
        httpTransport = GoogleNetHttpTransport.newTrustedTransport();
        jsonFactory = JacksonFactory.getDefaultInstance();

        credential = new GoogleCredential.Builder().setTransport(httpTransport).setJsonFactory(jsonFactory)
                .setServiceAccountId(serviceAccountEmail)
                .setServiceAccountScopes(Arrays.asList(SCOPE_SHEET, SCOPE_DRIVE))
                .setServiceAccountPrivateKeyFromP12File(serviceAccountPrivateKeyFileP12).build();
    }

    public Credential getCredential() {
        return credential;
    }
}