consumer-filter.md

Full and usable samples can be found under test/config/

Filter

• sourcePath: write a java class implements MethodFilter to handle SyncData
  • Open a new maven project and import the latest dependency (not import other dependency):

        <dependency>
            <groupId>com.github.zzt93</groupId>
            <artifactId>syncer-data</artifactId>
            <version>1.0.2-SNAPSHOT</version>
        </dependency>
  

  • Write a class implement MethodFilter without package name: use all api provided by SyncData to do any change you like

    import com.github.zzt93.syncer.data.SyncData;
    import com.github.zzt93.syncer.data.util.MethodFilter;
    import com.github.zzt93.syncer.data.util.SyncUtil;
    
    import java.util.List;
    
    /**
     * @author zzt
     */
    public class Simplest implements MethodFilter {
      @Override
      public void filter(List<SyncData> list) {
        SyncData sync = list.get(0);
        SyncUtil.unsignedByte(sync, "tinyint");
        SyncUtil.unsignedByte(sync, "type");
      }
    }

  • config it:

  filter:
    sourcePath: /data/config/consumer/ColdFilter.java

  • debug code
    • add log by slf4j logger
    • how to add breakpoint to debug?