io.wcm.devops.jenkins.pipeline.utils.resources.JsonLibraryResource.groovy Maven / Gradle / Ivy

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/*-
 * #%L
 * wcm.io
 * %%
 * Copyright (C) 2017 wcm.io DevOps
 * %%
 * 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.
 * #L%
 */
package io.wcm.devops.jenkins.pipeline.utils.resources

import com.cloudbees.groovy.cps.NonCPS
import io.wcm.devops.jenkins.pipeline.utils.logging.Logger
import net.sf.json.JSON
import org.jenkinsci.plugins.workflow.cps.DSL

/**
 * Utility function for loading JSON library files
 *
 * @see LibraryResource
 */
class JsonLibraryResource implements Serializable {

  private static final long serialVersionUID = 1L

  Logger log = new Logger(this)

  LibraryResource libraryResource

  DSL dsl

  String file

  /**
   * @param dsl The DSL object of the current pipeline script (available via this.steps in pipeline scripts)
   * @param file Path to the file
   */
  JsonLibraryResource(DSL dsl, String file) {
    this.dsl = dsl
    this.file = file
    libraryResource = new LibraryResource(dsl, file)
  }

  /**
   * Loads the resource file via LibraryResource and uses the Pipeline Utility step readJSON to parse the content into
   * a JSON object
   *
   * @return The loaded file as JSON object
   */
  @NonCPS
  JSON load() {
    def jsonStr = libraryResource.load()
    try {
      JSON json = dsl.readJSON(text: jsonStr)
      log.trace("parsed json: ${json}")
      return json
    } catch (Exception ex) {
      log.debug("Error parsing '$file' from project pipeline library: ${ex}")
      throw ex
    }
  }
}