io.pivotal.util.MarkdownEngine.java Source code

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Here is the source code for io.pivotal.util.MarkdownEngine.java

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/*
 * Copyright 2002-2016 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.pivotal.util;

import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Component;
import org.springframework.util.StringUtils;

import io.pivotal.jira.JiraConfig;
import lombok.Data;

/**
 * @author Rob Winch
 *
 */
@Data
@Component
public class MarkdownEngine implements MarkupEngine {
    String jiraBaseUrl;

    @Autowired
    public void setJiraClient(JiraConfig jiraConfig) {
        jiraBaseUrl = jiraConfig.getBaseUrl();
    }

    @Override
    public String link(String text, String href) {
        return "[" + text + "](" + href + ")";
    }

    @Override
    public String convert(String text) {
        if (!StringUtils.hasLength(text)) {
            return "";
        }
        text = header(text);
        text = text.replaceAll("\\{(code|noformat)(:(\\w+))?(?:(:|\\|)\\w+=.+?)*\\}", "```$3 ");
        text = text.replaceAll("(```\\w*) (.+)", "$1\n$2");
        text = text.replaceAll("(.)(```) ", "$1\n$2");
        text = text.replaceAll("\\[(.+?)\\|(http.*?)\\]", "[$1]($2)");
        text = text.replaceAll("\\{\\{(.+?)\\}\\}", "`$1`");
        text = quote(text);
        return text.replaceAll("\\[~([\\w]+)\\]", "[$1](" + jiraBaseUrl + "/secure/ViewProfile.jspa?name=$1)");
    }

    public String header(String text) {
        text = text.replaceAll("^h1. ", "# ");
        text = text.replaceAll("^h2. ", "## ");
        text = text.replaceAll("^h3. ", "### ");
        text = text.replaceAll("^h4. ", "#### ");
        text = text.replaceAll("^h5. ", "##### ");
        text = text.replaceAll("^h6. ", "###### ");
        return text;
    }

    public static String quote(String str) {
        String[] parts = str.split("\\{quote\\}");

        for (int i = 1; i < parts.length; i += 2) {
            parts[i] = "\n > " + parts[i].replaceAll("\n", "\n> ");
        }
        return StringUtils.arrayToDelimitedString(parts, "");
    }
}