com.iprogrammerr.gentle.request.binary.ConfigurablePattern Maven / Gradle / Ivy

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Compact library for creating and reading http requests.

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package com.iprogrammerr.gentle.request.binary;

public final class ConfigurablePattern implements BinaryPattern {

	private final byte[] pattern;

	public ConfigurablePattern(byte[] pattern) {
		this.pattern = pattern;
	}

	@Override
	public int index(byte[] content) {
		int index = -1;
		for (int i = 0; content.length - i >= this.pattern.length; ++i) {
			if (content[i] != this.pattern[0]) {
				continue;
			}
			boolean found = true;
			for (int j = 1; j < this.pattern.length; ++j) {
				if (content[i + j] != this.pattern[j]) {
					found = false;
					break;
				}
			}
			if (found) {
				index = i;
				break;
			}
		}
		return index;
	}

	@Override
	public byte[] value() {
		return this.pattern;
	}
}