Mods to properly downloading blobs and files.

src/main/java/org/gitlab4j/api/AbstractApi.java

@@ -64,6 +64,25 @@ public abstract class AbstractApi implements Constants {
         }
     }
 
+    /**
+     * Perform an HTTP GET call with the specified query parameters and path objects, returning
+     * a ClientResponse instance with the data returned from the endpoint.
+     *
+     * @param expectedStatus the HTTP status that should be returned from the server
+     * @param queryParams multivalue map of request parameters
+     * @param accepts if non-empty will set the Accepts header to this value
+     * @param pathArgs variable list of arguments used to build the URI
+     * @return a ClientResponse instance with the data returned from the endpoint
+     * @throws GitLabApiException if any exception occurs during execution
+     */
+    protected Response getWithAccepts(Response.Status expectedStatus, MultivaluedMap<String, String> queryParams, String accepts, Object... pathArgs) throws GitLabApiException {
+        try {
+            return validate(getApiClient().getWithAccepts(queryParams, accepts, pathArgs), expectedStatus);
+        } catch (Exception e) {
+            throw handle(e);
+        }
+    }
+
     /**
      * Perform an HTTP GET call with the specified query parameters and URL, returning
      * a ClientResponse instance with the data returned from the endpoint.

src/main/java/org/gitlab4j/api/GitLabApiClient.java

@@ -285,6 +285,34 @@ public class GitLabApiClient {
         return (invocation(url, queryParams).get());
     }
 
+    /**
+     * Perform an HTTP GET call with the specified query parameters and path objects, returning
+     * a ClientResponse instance with the data returned from the endpoint.
+     * 
+     * @param queryParams multivalue map of request parameters
+     * @param accepts if non-empty will set the Accepts header to this value
+     * @param pathArgs variable list of arguments used to build the URI
+     * @return a ClientResponse instance with the data returned from the endpoint
+     * @throws IOException if an error occurs while constructing the URL
+     */
+    protected Response getWithAccepts(MultivaluedMap<String, String> queryParams, String accepts, Object... pathArgs) throws IOException {
+        URL url = getApiUrl(pathArgs);
+        return (getWithAccepts(queryParams, url, accepts));
+    }
+
+    /**
+     * Perform an HTTP GET call with the specified query parameters and URL, returning
+     * a ClientResponse instance with the data returned from the endpoint.
+     * 
+     * @param queryParams multivalue map of request parameters
+     * @param url the fully formed path to the GitLab API endpoint
+     * @param accepts if non-empty will set the Accepts header to this value
+     * @return a ClientResponse instance with the data returned from the endpoint
+     */
+    protected Response getWithAccepts(MultivaluedMap<String, String> queryParams, URL url, String accepts) {
+        return (invocation(url, queryParams, accepts).get());
+    }
+
     /**
      * Perform an HTTP POST call with the specified form data and path objects, returning
      * a ClientResponse instance with the data returned from the endpoint.
@@ -392,6 +420,10 @@ public class GitLabApiClient {
     }
 
     protected Invocation.Builder invocation(URL url, MultivaluedMap<String, String> queryParams) {
+        return (invocation(url, queryParams, MediaType.APPLICATION_JSON));
+    }
+
+    protected Invocation.Builder invocation(URL url, MultivaluedMap<String, String> queryParams, String accept) {
 
         if (apiClient == null) {
             apiClient = ClientBuilder.newBuilder().withConfig(clientConfig).sslContext(getSslContext()).hostnameVerifier(new AcceptAllHostnameVerifier()).build();
@@ -404,7 +436,10 @@ public class GitLabApiClient {
             }
         }
 
-        return (target.request().header(PRIVATE_TOKEN_HEADER, privateToken).accept(MediaType.APPLICATION_JSON));
+        if (accept == null || accept.trim().length() == 0)
+            return (target.request().header(PRIVATE_TOKEN_HEADER, privateToken));
+        else
+            return (target.request().header(PRIVATE_TOKEN_HEADER, privateToken).accept(accept));
     }
 
     protected class AcceptAllHostnameVerifier implements HostnameVerifier {

src/main/java/org/gitlab4j/api/RepositoryApi.java

@@ -9,6 +9,7 @@ import java.util.List;
 
 import javax.ws.rs.core.Form;
 import javax.ws.rs.core.GenericType;
+import javax.ws.rs.core.MediaType;
 import javax.ws.rs.core.Response;
 
 import org.gitlab4j.api.GitLabApi.ApiVersion;
@@ -388,23 +389,6 @@ public class RepositoryApi extends AbstractApi {
         return (new Pager<TreeItem>(this, TreeItem.class, itemsPerPage, formData.asMap(), "projects", projectId, "repository", "tree"));
     }
 
-    /**
-     * Get the raw file contents for a file by commit sha and path.
-     *
-     * GET /projects/:id/repository/blobs/:sha
-     *
-     * @param projectId the ID of the project
-     * @param commitOrBranchName the commit or branch name to get the file contents for
-     * @param filepath the path of the file to get
-     * @return a string with the file content for the specified file
-     * @throws GitLabApiException if any exception occurs
-     */
-    public InputStream getRawFileContent(Integer projectId, String commitOrBranchName, String filepath) throws GitLabApiException {
-        Form formData = new GitLabApiForm().withParam("filepath", filepath, true);
-        Response response = get(Response.Status.OK, formData.asMap(), "projects", projectId, "repository", "blobs", commitOrBranchName);
-        return (response.readEntity(InputStream.class));
-    }
-
     /**
      * Get the raw file contents for a blob by blob SHA.
      *
@@ -416,7 +400,8 @@ public class RepositoryApi extends AbstractApi {
      * @throws GitLabApiException if any exception occurs
      */
     public InputStream getRawBlobContent(Integer projectId, String sha) throws GitLabApiException {
-        Response response = get(Response.Status.OK, null, "projects", projectId, "repository", "raw_blobs", sha);
+        Response response = getWithAccepts(Response.Status.OK, null, MediaType.MEDIA_TYPE_WILDCARD,
+                "projects", projectId, "repository", "blobs", sha, "raw");
         return (response.readEntity(InputStream.class));
     }
 
@@ -433,7 +418,8 @@ public class RepositoryApi extends AbstractApi {
      */
     public InputStream getRepositoryArchive(Integer projectId, String sha) throws GitLabApiException {
         Form formData = new GitLabApiForm().withParam("sha", sha);
-        Response response = get(Response.Status.OK, formData.asMap(), "projects", projectId, "repository", "archive");
+        Response response = getWithAccepts(Response.Status.OK, formData.asMap(), MediaType.MEDIA_TYPE_WILDCARD,
+                "projects", projectId, "repository", "archive");
         return (response.readEntity(InputStream.class));
     }
 
@@ -452,7 +438,8 @@ public class RepositoryApi extends AbstractApi {
     public File getRepositoryArchive(Integer projectId, String sha, File directory) throws GitLabApiException {
 
         Form formData = new GitLabApiForm().withParam("sha", sha);
-        Response response = get(Response.Status.OK, formData.asMap(), "projects", projectId, "repository", "archive");
+        Response response = getWithAccepts(Response.Status.OK, formData.asMap(), MediaType.MEDIA_TYPE_WILDCARD,
+                "projects", projectId, "repository", "archive");
 
         try {
 

src/main/java/org/gitlab4j/api/RepositoryFileApi.java

 package org.gitlab4j.api;
 
+import java.io.File;
+import java.io.IOException;
+import java.io.InputStream;
+import java.nio.file.Files;
+import java.nio.file.StandardCopyOption;
+
 import javax.ws.rs.core.Form;
+import javax.ws.rs.core.MediaType;
 import javax.ws.rs.core.Response;
 
 import org.gitlab4j.api.GitLabApi.ApiVersion;
@@ -137,6 +144,59 @@ public class RepositoryFileApi extends AbstractApi {
         delete(expectedStatus, form.asMap(), "projects", projectId, "repository", "files");
     }
 
+    /**
+     * Get the raw file for the file by commit sha and path. Thye file will be saved to the specified directory.
+     * If the file already exists in the directory it will be overwritten.
+     *
+     * GET /projects/:id/repository/archive
+     *
+     * @param projectId the ID of the project
+     * @param commitOrBranchName the commit or branch name to get the file for
+     * @param filepath the path of the file to get
+     * @return a File instance pointing to the download of the specified file
+     * @throws GitLabApiException if any exception occurs
+     */
+    public File getRawFile(Integer projectId, String commitOrBranchName, String filepath, File directory) throws GitLabApiException {
+
+        Form formData = new GitLabApiForm().withParam("ref", commitOrBranchName, true);
+        Response response = getWithAccepts(Response.Status.OK, formData.asMap(), MediaType.MEDIA_TYPE_WILDCARD,
+                "projects", projectId, "repository", "files", filepath, "raw");
+
+        try {
+
+            if (directory == null)
+                directory = new File(System.getProperty("java.io.tmpdir"));
+
+            String filename = new File(filepath).getName();
+            File file = new File(directory, filename);
+
+            InputStream in = response.readEntity(InputStream.class);
+            Files.copy(in, file.toPath(), StandardCopyOption.REPLACE_EXISTING);
+            return (file);
+
+        } catch (IOException ioe) {
+            throw new GitLabApiException(ioe);
+        }
+    }
+
+    /**
+     * Get the raw file contents for a file by commit sha and path.
+     *
+     * GET /projects/:id/repository/blobs/:sha
+     *
+     * @param projectId the ID of the project
+     * @param commitOrBranchName the commit or branch name to get the file contents for
+     * @param filepath the path of the file to get
+     * @return a string with the file content for the specified file
+     * @throws GitLabApiException if any exception occurs
+     */
+    public InputStream getRawFile(Integer projectId, String commitOrBranchName, String filepath) throws GitLabApiException {
+        Form formData = new GitLabApiForm().withParam("ref", commitOrBranchName, true);
+        Response response = getWithAccepts(Response.Status.OK, formData.asMap(),  MediaType.MEDIA_TYPE_WILDCARD,
+                "projects", projectId, "repository", "files", filepath, "raw");
+        return (response.readEntity(InputStream.class));
+    }
+
     private Form file2form(RepositoryFile file, String branchName, String commitMessage) {
         Form form = new Form();
         addFormParam(form, "file_path", file.getFilePath(), true);