'Validates given yaml paths and returns the parsed yaml objects.
Args:
yaml_paths: List of paths to AppInfo yaml files.
Returns:
List of parsed AppInfo yamls.'

def _ParseAndValidateModuleYamls(self, yaml_paths):

    results = []
    app_id = None
    last_yaml_path = None
    for yaml_path in yaml_paths:
        if (not os.path.isfile(yaml_path)):
            _PrintErrorAndExit(self.error_fh, ("Error:    The    given    path    '%s'    is    not    to    a    YAML    configuration    file.\n" % yaml_path))
        file_name = os.path.basename(yaml_path)
        base_path = os.path.dirname(yaml_path)
        if (not base_path):
            base_path = '.'
        module_yaml = self._ParseAppInfoFromYaml(base_path, os.path.splitext(file_name)[0])
        if ((not module_yaml.module) and (file_name != 'app.yaml')):
            _PrintErrorAndExit(self.error_fh, ("Error:    'module'    parameter    not    specified    in    %s" % yaml_path))
        if ((app_id is not None) and (module_yaml.application != app_id)):
            _PrintErrorAndExit(self.error_fh, ("Error:    'application'    value    '%s'    in    %s    does    not    match    the    value    '%s',    found    in    %s" % (module_yaml.application, yaml_path, app_id, last_yaml_path)))
        app_id = module_yaml.application
        last_yaml_path = yaml_path
        results.append(module_yaml)
    return results
