1 files changed, 118 insertions, 0 deletions
diff --git a/core/src/main/java/com/android/volley/toolbox/HttpResponse.java b/core/src/main/java/com/android/volley/toolbox/HttpResponse.java
new file mode 100644
index 0000000..595f926
--- /dev/null
+++ b/core/src/main/java/com/android/volley/toolbox/HttpResponse.java
@@ -0,0 +1,118 @@
+/*
+ * Copyright (C) 2017 The Android Open Source Project
+ *
+ * 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 com.android.volley.toolbox;
+
+import androidx.annotation.Nullable;
+import com.android.volley.Header;
+import java.io.ByteArrayInputStream;
+import java.io.InputStream;
+import java.util.Collections;
+import java.util.List;
+
+/** A response from an HTTP server. */
+public final class HttpResponse {
+
+    private final int mStatusCode;
+    private final List<Header> mHeaders;
+    private final int mContentLength;
+    @Nullable private final InputStream mContent;
+    @Nullable private final byte[] mContentBytes;
+
+    /**
+     * Construct a new HttpResponse for an empty response body.
+     *
+     * @param statusCode the HTTP status code of the response
+     * @param headers the response headers
+     */
+    public HttpResponse(int statusCode, List<Header> headers) {
+        this(statusCode, headers, /* contentLength= */ -1, /* content= */ null);
+    }
+
+    /**
+     * Construct a new HttpResponse.
+     *
+     * @param statusCode the HTTP status code of the response
+     * @param headers the response headers
+     * @param contentLength the length of the response content. Ignored if there is no content.
+     * @param content an {@link InputStream} of the response content. May be null to indicate that
+     *     the response has no content.
+     */
+    public HttpResponse(
+            int statusCode, List<Header> headers, int contentLength, InputStream content) {
+        mStatusCode = statusCode;
+        mHeaders = headers;
+        mContentLength = contentLength;
+        mContent = content;
+        mContentBytes = null;
+    }
+
+    /**
+     * Construct a new HttpResponse.
+     *
+     * @param statusCode the HTTP status code of the response
+     * @param headers the response headers
+     * @param contentBytes a byte[] of the response content. This is an optimization for HTTP stacks
+     *     that natively support returning a byte[].
+     */
+    public HttpResponse(int statusCode, List<Header> headers, byte[] contentBytes) {
+        mStatusCode = statusCode;
+        mHeaders = headers;
+        mContentLength = contentBytes.length;
+        mContentBytes = contentBytes;
+        mContent = null;
+    }
+
+    /** Returns the HTTP status code of the response. */
+    public final int getStatusCode() {
+        return mStatusCode;
+    }
+
+    /** Returns the response headers. Must not be mutated directly. */
+    public final List<Header> getHeaders() {
+        return Collections.unmodifiableList(mHeaders);
+    }
+
+    /** Returns the length of the content. Only valid if {@link #getContent} is non-null. */
+    public final int getContentLength() {
+        return mContentLength;
+    }
+
+    /**
+     * If a byte[] was already provided by an HTTP stack that natively supports returning one, this
+     * method will return that byte[] as an optimization over copying the bytes from an input
+     * stream. It may return null, even if the response has content, as long as mContent is
+     * provided.
+     */
+    @Nullable
+    public final byte[] getContentBytes() {
+        return mContentBytes;
+    }
+
+    /**
+     * Returns an {@link InputStream} of the response content. May be null to indicate that the
+     * response has no content.
+     */
+    @Nullable
+    public final InputStream getContent() {
+        if (mContent != null) {
+            return mContent;
+        } else if (mContentBytes != null) {
+            return new ByteArrayInputStream(mContentBytes);
+        } else {
+            return null;
+        }
+    }
+}