src/main/java/org/takes/rq/form/RqFormFake.java
/*
* The MIT License (MIT)
*
* Copyright (c) 2014-2024 Yegor Bugayenko
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included
* in all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
* SOFTWARE.
*/
package org.takes.rq.form;
import java.io.IOException;
import java.io.InputStream;
import java.io.UnsupportedEncodingException;
import java.net.URLEncoder;
import java.nio.charset.Charset;
import org.takes.Request;
import org.takes.rq.RqForm;
import org.takes.rq.RqWithBody;
/**
* RqFormFake accepts parameters in the constructor.
* @since 0.33
*/
public final class RqFormFake implements RqForm {
/**
* RqFormFake form request.
*/
private final RqForm fake;
/**
* Ctor.
* @param req Original request
* @param params Parameters
*/
public RqFormFake(final Request req, final String... params) {
this.fake = new RqFormBase(
new RqWithBody(req, construct(validated(params)))
);
}
@Override
public Iterable<String> param(final CharSequence name)
throws IOException {
return this.fake.param(name);
}
@Override
public Iterable<String> names() throws IOException {
return this.fake.names();
}
@Override
public Iterable<String> head() throws IOException {
return this.fake.head();
}
@Override
public InputStream body() throws IOException {
return this.fake.body();
}
/**
* Validate parameters.
* @param params Parameters
* @return Validated parameters if their count is even.
* @throws IllegalArgumentException if parameters count is odd.
*/
private static String[] validated(final String... params) {
if (params.length % 2 != 0) {
throw new IllegalArgumentException(
"Wrong number of parameters"
);
}
return params;
}
/**
* Construct request body from parameters.
* @param params Parameters
* @return Request body
*/
private static String construct(final String... params) {
final StringBuilder builder = new StringBuilder();
for (int idx = 0; idx < params.length; idx += 2) {
builder.append(encode(params[idx]))
.append('=')
.append(encode(params[idx + 1]))
.append('&');
}
return builder.toString();
}
/**
* Encode text.
* @param txt Text
* @return Encoded text
*/
private static String encode(final CharSequence txt) {
try {
return URLEncoder.encode(
txt.toString(), Charset.defaultCharset().name()
);
} catch (final UnsupportedEncodingException ex) {
throw new IllegalStateException(
String.format("Failed to encode '%s'", txt),
ex
);
}
}
}