Logo Questions Linux Laravel Mysql Ubuntu Git Menu
 

Seeking useful Eclipse Java code templates [closed]

The following code templates will both create a logger and create the right imports, if needed.

SLF4J

${:import(org.slf4j.Logger,org.slf4j.LoggerFactory)}
private static final Logger LOG = LoggerFactory.getLogger(${enclosing_type}.class);

Log4J 2

${:import(org.apache.logging.log4j.LogManager,org.apache.logging.log4j.Logger)} 
private static final Logger LOG = LogManager.getLogger(${enclosing_type}.class); 

Log4J

${:import(org.apache.log4j.Logger)}
private static final Logger LOG = Logger.getLogger(${enclosing_type}.class);

Source.

JUL

${:import(java.util.logging.Logger)}
private static final Logger LOG = Logger.getLogger(${enclosing_type}.class.getName());

Some additional templates here: Link I - Link II

I like this one:

readfile

 ${:import(java.io.BufferedReader,  
           java.io.FileNotFoundException,  
           java.io.FileReader,  
           java.io.IOException)}  
 BufferedReader in = null;  
 try {  
    in = new BufferedReader(new FileReader(${fileName}));  
    String line;  
    while ((line = in.readLine()) != null) {  
       ${process}  
    }  
 }  
 catch (FileNotFoundException e) {  
    logger.error(e) ;  
 }  
 catch (IOException e) {  
    logger.error(e) ;  
 } finally {  
    if(in != null) in.close();  
 }  
 ${cursor} 

UPDATE: The Java 7 version of this template is:

${:import(java.nio.file.Files,
          java.nio.file.Paths,
          java.nio.charset.Charset,
          java.io.IOException,
          java.io.BufferedReader)}
try (BufferedReader in = Files.newBufferedReader(Paths.get(${fileName:var(String)}),
                                                 Charset.forName("UTF-8"))) {
    String line = null;
    while ((line = in.readLine()) != null) {
        ${cursor}
    }
} catch (IOException e) {
    // ${todo}: handle exception
}

Format a string

MessageFormat - surround the selection with a MessageFormat.

 ${:import(java.text.MessageFormat)} 
 MessageFormat.format(${word_selection}, ${cursor})

This lets me move a cursor to a string, expand the selection to the entire string (Shift-Alt-Up), then Ctrl-Space twice.

Lock the selection

lock - surround the selected lines with a try finally lock. Assume the presence of a lock variable.

${lock}.acquire();
try {
    ${line_selection}
    ${cursor}
} finally {
    ${lock}.release();
}

NB ${line_selection} templates show up in the Surround With menu (Alt-Shift-Z).


I know I am kicking a dead post, but wanted to share this for completion sake:

A correct version of singleton generation template, that overcomes the flawed double-checked locking design (discussed above and mentioned else where)

Singleton Creation Template: Name this createsingleton

static enum Singleton {
    INSTANCE;

    private static final ${enclosing_type} singleton = new ${enclosing_type}();

    public ${enclosing_type} getSingleton() {
        return singleton;
    }
}
${cursor}


To access singletons generated using above:

Singleton reference Template: Name this getsingleton:

${type} ${newName} = ${type}.Singleton.INSTANCE.getSingleton();