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import java.time.LocalDate
import java.time.temporal.TemporalAdjusters

LocalDate localDate = LocalDate.now()
println localDate                                                         // 2016-04-12
println localDate.plusMonths(1).withDayOfMonth(1)                         // 2016-05-01
println localDate.minusMonths(1).with(TemporalAdjusters.lastDayOfMonth()) // 2016-03-31

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import java.time.LocalDate
import java.time.ZonedDateTime
import java.time.ZoneId
import java.time.format.DateTimeFormatter
import java.time.temporal.TemporalAdjusters

// If you have a date without time information, use a LocalDate.  e.g. someone's birthday
LocalDate localDate = new LocalDate(2016, 4, 12)
println localDate.toString()  // 2016-04-12

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Install Homebrew / Cask

ruby -e "$(curl -fsSL https://raw.github.com/Homebrew/homebrew/go/install)"
brew install caskroom/cask/brew-cask

todo - replace this with brewfile

Install common applications via Homebrew

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package com.foo.config

import com.foog.util.TomcatDatasourceUtil
import grails.plugins.rest.client.RestBuilder
import groovy.json.JsonSlurper

/**
 * Application service to get and set values from a centralized remote configuration service.
 */
class RemoteConfigService {

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import groovy.json.JsonSlurper

dataSource {
    // most properties are directly set
    pooled = true
    // ...
    
    // the url is retrieved from etcd...make sure the etcd resource is properly protected
    def jsonSlurper = new JsonSlurper()
    def catalogUrlConfig = jsonSlurper.parseText(new URL("http://etcdlocation:2379/v2/keys/dataSource/url").text)

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package com.foo.util

import groovy.util.logging.Log4j
import org.apache.tomcat.jdbc.pool.ConnectionPool
import org.codehaus.groovy.grails.commons.GrailsApplication

@Log4j
class TomcatDatasourceUtil {

    static void ensureCurrentDatasources(GrailsApplication application, List datasourceNames) {

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def things = null

things.collect { it.a }   // returns []
things*.a                 // returns null
things.a                  // throws a NullPointerException

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def things = [ [a: 1], [a: 2] ]

things.collect { it.a } // returns [1, 2]
things*.a               // returns [1, 2]
things.a                // returns [1, 2]

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<%@ page defaultCodec="none" %>
<div class="form-group ${formGroupClass ?: ''} <g:if test="${invalid}">has-error</g:if>">
  <label class="control-label ${labelClass ?: ''}" for="${property}">${label} <%=required ? "*" : ""%></label>
  <input type="<%=type ?: "text" %>" name="${prefix ?: ''}${property}" id="${prefix ?: ''}${property}" value="${value}" <%=constraints.maxSize ? "maxlength=${constraints.maxSize}" : ""%> <%=readonly ? "readonly=readonly" : ""%> class="form-control <%= pageScope["class"] ?: '' %>" <%=placeholder ? "placeholder='$placeholder'" : ""%>/>
  <g:if test="${helpText}"><span class="help-block">${helpText}</span></g:if>
  <g:if test="${invalid}"><span class="help-block">${errors.join('<br>')}</span></g:if>
</div>

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package myapp

import org.apache.commons.logging.Log
import org.apache.commons.logging.LogFactory
import org.apache.log4j.MDC

class UsageTrackingFilters {
    private static final Log LOG = LogFactory.getLog('usagetracking')

    private static final String REQUEST_ID = "requestId"