Example usage for org.springframework.util Assert isTrue

Introduction

In this page you can find the example usage for org.springframework.util Assert isTrue.

Prototype

public static void isTrue(boolean expression, Supplier<String> messageSupplier)

Source Link

Document

Assert a boolean expression, throwing an IllegalArgumentException if the expression evaluates to false .

Usage

From source file:com.thero.framework.util.AntPathStringMatcher.java

/**
 * Main entry point./*  w w w . java2 s.c o m*/
 *
 * @return <code>true</code> if the string matches against the pattern, or <code>false</code> otherwise.
 */
public boolean matchStrings() {
    Matcher matcher = pattern.matcher(str);
    if (matcher.matches()) {
        if (uriTemplateVariables != null) {
            // SPR-8455
            Assert.isTrue(variableNames.size() == matcher.groupCount(),
                    "The number of capturing groups in the pattern segment " + pattern
                            + " does not match the number of URI template variables it defines, which can occur if "
                            + " capturing groups are used in a URI template regex. Use non-capturing groups instead.");
            for (int i = 1; i <= matcher.groupCount(); i++) {
                String name = this.variableNames.get(i - 1);
                String value = matcher.group(i);
                uriTemplateVariables.put(name, value);
            }
        }
        return true;
    } else {
        return false;
    }
}

From source file:pt.webdetails.browserid.spring.BrowserIdProcessingFilter.java

@Override
public void afterPropertiesSet() throws Exception {
    super.afterPropertiesSet();
    //request parameters
    Assert.hasLength(getAssertionParameterName(), "assertionParameterName cannot be empty.");
    //    Assert.hasLength(getAudienceParameterName(), "audienceParameterName cannot be empty.");

    //check URL/*from   w  w w  . jav a2  s.c  o m*/
    Assert.hasLength(getVerificationServiceUrl());
    try {
        HttpHost host = new HttpHost(new URI(getVerificationServiceUrl(), false));
        Assert.isTrue(host.getProtocol().isSecure(), "verificationServiceUrl does not use a secure protocol");
    } catch (URIException e) {
        throw new IllegalArgumentException("verificationServiceUrl is not a valid URI", e);
    }
}