io.restassured.internal.multipart.RestAssuredMultiPartEntity.groovy Maven / Gradle / Ivy

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Java DSL for easy testing of REST services
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/*
 * Copyright 2019 the original author or authors.
 *
 * 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 io.restassured.internal.multipart

import org.apache.http.Header
import org.apache.http.HttpEntity
import org.apache.http.entity.mime.FormBodyPart
import org.apache.http.entity.mime.HttpMultipartMode
import org.apache.http.entity.mime.MultipartEntityBuilder
import org.apache.http.entity.mime.content.ContentBody

import java.nio.charset.Charset

import static io.restassured.internal.common.assertion.AssertParameter.notNull

/**
 * This is essentially a copy of {@link org.apache.http.entity.mime.MultipartEntity} that supports setting the mime subtype.
 */
class RestAssuredMultiPartEntity implements HttpEntity {

  /**
   * The pool of ASCII chars to be used for generating a multipart boundary.
   */
  private final static char[] MULTIPART_CHARS =
          "-_1234567890abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ"
                  .toCharArray();

  private final MultipartEntityBuilder builder;
  private volatile HttpEntity entity;

  public RestAssuredMultiPartEntity(String subType, String charset, HttpMultipartMode mode, String boundary) {
    notNull(subType, "Multipart sub type");
    this.builder = MultipartEntityBuilder.create()
            .setMode(mode)
            .setCharset(charset == null ? null : Charset.forName(charset.trim()))
            .setMimeSubtype(subType.trim())
            .setBoundary(boundary);

    this.entity = null;
  }

  private HttpEntity getEntity() {
    if (this.entity == null) {
      this.entity = this.builder.build();
    }
    return this.entity;
  }

  public void addPart(final FormBodyPart bodyPart) {
    this.builder.addPart(bodyPart);
    this.entity = null;
  }

  public void addPart(final String name, final ContentBody contentBody) {
    addPart(new FormBodyPart(name, contentBody));
  }

  public boolean isRepeatable() {
    return getEntity().isRepeatable();
  }

  public boolean isChunked() {
    return getEntity().isChunked();
  }

  public boolean isStreaming() {
    return getEntity().isStreaming();
  }

  public long getContentLength() {
    return getEntity().getContentLength();
  }

  public Header getContentType() {
    return getEntity().getContentType();
  }

  public Header getContentEncoding() {
    return getEntity().getContentEncoding();
  }

  public void consumeContent()
          throws IOException, UnsupportedOperationException {
    if (isStreaming()) {
      throw new UnsupportedOperationException(
              "Streaming entity does not implement #consumeContent()");
    }
  }

  public InputStream getContent() throws IOException, UnsupportedOperationException {
    throw new UnsupportedOperationException(
            "Multipart form entity does not implement #getContent()");
  }

  public void writeTo(final OutputStream outstream) throws IOException {
    getEntity().writeTo(outstream);
  }


}